MLOM Link Speed drop-down list

This option allows you to restrict the maximum speed of an adapter card installed in PCIe MLOM slot. This can be one of the following:

• Disabled—The maximum speed is not restricted.

• Auto—System selects the maximum speed allowed.

• GEN1—2.5GT/s (gigatransfers per second) is the maximum speed allowed.

• GEN2—5GT/s is the maximum speed allowed.

• GEN3—8GT/s is the maximum speed allowed.

• GEN4—Link speed can reach up to fourth generation.

• GEN5—Link speed can reach up to fifth generation.

MLOM OptionROM toggle button

This options allows you to control the Option ROM execution of the PCIe adapter connected to the MLOM slot. This can be one of the following:

• Disabled—Does not execute Option ROM of the PCIe adapter connected to the MLOM slot.

• Enabled—Executes Option ROM of the PCIe adapter connected to the MLOM slot.

PCIe Slotn Link Speed drop-down list

System IO Controller n (SIOCn) add-on slot (designated by n) link speed. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto— The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

• GEN5—Link speed can reach up to fifth generation.

PCIe Slot Option ROM

PCIe Slotn OptionROM toggle button

Allows you to enable or disable the feature whether the server can use the Option ROMs present in the PCIe card slot designated by n. This can be one of the following:

• Disabled—Option ROM for slot n is not available.

• Enabled—Option ROM for slot n is available.

PCIe Slot MSTOR RAID OptionROM toggle button

Allows you to enable or disable the feature whether the server can use the Option ROMs present in the PCIe MSTOR RAID. This can be one of the following:

• Disabled—Option ROM is not available.

• Enabled—Option ROM is available.

MRAID Link Speed

MRAIDn Link Speed drop-down list

This option allows you to restrict the maximum speed of an MRAID adapter card installed. This can be one of the following:

• Disabled—The maximum speed is not restricted.

• Auto—System selects the maximum speed allowed.

• GEN1—2.5GT/s (gigatransfers per second) is the maximum speed allowed.

• GEN2—5GT/s is the maximum speed allowed.

• GEN3—8GT/s is the maximum speed allowed.

• GEN4—16GT/s is the maximum speed allowed.

• GEN5—Link speed can reach up to fifth generation.

MRAID OptionROM

MRAID OptionROM toggle button

This options allows you to control the Option ROM execution of the MRAID PCIe adapter connected. This can be one of the following:

• Disabled—Does not execute Option ROM of the MRAID PCIe adapter.

• Enabled—Executes Option ROM of the MRAID PCIe adapter.

NVME Link Speed

Front NVME-n Link Speed drop-down list

Link speed for NVMe front slot designated by slot n. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto—The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

• GEN5—Link speed can reach up to fifth generation.

Rear NVME-n Link Speed drop-down list

Link speed for NVMe rear slot designated by slot n. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto—The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

• GEN5—Link speed can reach up to fifth generation.

NVME OptionROM

Front NVME-n OptionROM toggle button

This option allows you to control the Option ROM execution of the PCIe adapter connected to the SSD:NVMe slot n. This can be one of the following:

• Disabled—Does not execute Option ROM of the PCIe adapter connected to the SSD:NVMe1 slot.

• Enabled—Executes Option ROM of the PCIe adapter connected to the SSD:NVMe1 slot

Rear NVME-n OptionROM toggle button

This option allows you to control the Option ROM execution of the PCIe adapter connected to the rear SSD:NVMe slot n. This can be one of the following:

• Disabled—Does not execute Option ROM of the PCIe adapter connected to the SSD:NVMe1 slot.

• Enabled—Executes Option ROM of the PCIe adapter connected to the SSD:NVMe1 slot

VMD Enable toggle button

Intel Volume Management Device (VMD) is for PCIe NVMe SSDs that provides hardware logic to manage and aggregate NVMe SSDs.

This can be one the following:

• Enabled— Enables benefits like robust surprise hot-plug, status LED management.

• Disabled— Disables the feature.

Default value: Disabled.

Refer Intel® Virtual RAID on CPU User Guide to configure VMD.

PCIe RAS Support toggle button

Allows you to enable or disable the feature where PCIe RAS Support is available on the PCIe slot. This can be one of the following:

• Disabled—PCIe RAS is not available on the slot.

• Enabled—PCIe RAS is available on port.

VGA Priority drop-down list

Allows you to set the priority for VGA graphics devices if multiple VGA devices are found in the system. This can be one of the following:

• On Board—Priority is given to the onboard VGA device. BIOS post screen and OS boot are driven through the onboard VGA port.

• Off Board—Priority is given to the PCIE Graphics adapter. BIOS post screen and OS boot are driven through the external graphics adapter port.

• On Board VGA Disabled—Priority is given to the PCIe Graphics adapter, and the onboard VGA device is disabled. The vKVM does not function when the onboard VGA is disabled.

USB Port Rear toggle button

Allows you to enable or disable the rear panel USB devices. This can be one of the following

• Disabled— Disables the rear panel USB ports. Devices connected to these ports are not detected by the BIOS and operating system.

• Enabled— Enables the rear panel USB ports. Devices connected to these ports are detected by the BIOS and operating system.

IPv6 PXE Support toggle button

Allows you to enable or disable IPv6 support for PXE. This can be one of the following

• Disabled—IPv6 PXE support is not available.

• Enabled—IPv6 PXE support is always available.

Network Stack toggle button

Allows you to monitor IPv6 and IPv4. This can be one of the following

• Disabled—Network Stack support is not available.

  Note	When disabled, the value set for IPV4 PXE Support does not impact the system.

• Enabled—Network Stack support is always available.

External SSC enable drop-down list

This option controls the use of an external Secure Socket Controller (SSC) for cryptographic operations, typically in relation to Trusted Platform Module (TPM) functionalities.

This can be one of the following:

• Off

• OPn_Percent

• Hardware

IPV4 PXE Support toggle button

Allows you to enable or disable IPv4 support for PXE. This can be one of the following

• Disabled—IPv4 PXE support is not available.

• enabled—IPv4 PXE support is always available.

IIO eDPC Support drop-down list

eDPC allows a downstream link to be disabled after an uncorrectable error, making recovery possible in a controlled and robust manner.

This can be one of the following:

• Disabled—eDPC support is disabled.

• On Fatal Error—eDPC is enabled only for fatal errors.

• On Fatal and Non-Fatal Errors—eDPC is enabled for both fatal and non-fatal errors.

IPv4 HTTP Support toggle button

Enables or disables IPv4 support for HTTP. This can be one of the following:

• Disabled—IPv4 HTTP support is not available.

• Enabled—IPv4 HTTP support is always available.

IPv6 HTTP Support toggle button

Enables or disables IPv6 support for HTTP. This can be one of the following:

• Disabled—IPv6 HTTP support is not available.

• Enabled—IPv6 HTTP support is always available.

Re-Size BAR Support toggle button

This feature allows the system to dynamically resize the BAR, providing more flexible and efficient use of memory resources.

• Disabled—Re-Size BAR Support is disabled.

• Enabled—Re-Size BAR Support is enabled.

PreBoot DMA Protection toggle button

Using this, the server can restrict or control DMA operations during the preboot phase, ensuring that only trusted devices can access system memory.

• Disabled—Re-Size BAR Support is disabled.

• Enabled—Re-Size BAR Support is enabled.

FRB 2 Timer toggle button

Whether the FRB2 timer is used by Cisco IMC to recover the system if it hangs during POST. This can be one of the following:

• Disabled—The FRB2 timer is not used.

• Enabled—The FRB2 timer is started during POST and used to recover the system if necessary.

OS Boot Watchdog Timer Policy drop-down list

What action the system takes if the watchdog timer expires. This can be one of the following:

• Power Off—The server is powered off if the watchdog timer expires during OS boot.

• Reset—The server is reset if the watchdog timer expires during OS boot.

OS Watchdog Timer toggle button

Whether the BIOS programs the watchdog timer with a specified timeout value. This can be one of the following:

• Disabled—The watchdog timer is not used to track how long the server takes to boot.

• Enabled—The watchdog timer tracks how long the server takes to boot. If the server does not boot within the length of time specified in the OS Boot Watchdog Timer Timeout field, the Cisco IMC logs an error and takes the action specified in the OS Boot Watchdog Policy field.

OS Watchdog Timer Timeout drop-down list

If OS does not boot within the specified time, OS watchdog timer expires and system takes action according to timer policy. This can be one of the following:

• 5 Minutes—The OS watchdog timer expires 5 minutes after it begins to boot.

• 10 Minutes—The OS watchdog timer expires 10 minutes after it begins to boot.

• 15 Minutes—The OS watchdog timer expires 15 minutes after it begins to boot.

• 20 Minutes—The OS watchdog timer expires 20 minutes after it begins to boot.

Baud Rate drop-down list

What Baud rate is used for the serial port transmission speed. If you disable Console Redirection, this option is not available. This can be one of the following:

• 9.6k—A 9,600 Baud rate is used.

• 19.2k—A 19,200 Baud rate is used.

• 38.4k—A 38,400 Baud rate is used.

• 57.6k—A 57,600 Baud rate is used.

• 115.2k—A 115,200 Baud rate is used.

This setting must match the setting on the remote terminal application.

Flow Control drop-down list

Whether a handshake protocol is used for flow control. Request to Send / Clear to Send (RTS/CTS) helps to reduce frame collisions that can be introduced by a hidden terminal problem. This can be one of the following:

• None—No flow control is used.

• RTS/CTS—RTS/CTS is used for flow control.

Console Redirection drop-down list

Allows a serial port to be used for console redirection during POST and BIOS booting. After the OS has booted, console redirection is irrelevant. This can be one of the following:

• COM 0—Enables console redirection on serial port A during POST.

• COM 1—Enables console redirection on serial port B during POST.

• Disabled—No console redirection occurs during POST.

Terminal type drop-down list

What type of character formatting is used for console redirection. This can be one of the following:

• PC-ANSI—The PC-ANSI terminal font is used.

• VT100—A supported VT100 video terminal and its character set are used.

• VT100-PLUS—A supported VT100-plus video terminal and its character set are used.

• VT-UTF8—A video terminal with the UTF-8 character set is used.

PCIe Slots CDN Control drop-down list

Whether the Ethernet Network naming convention is according to Consistent Device Naming (CDN) or the traditional way of naming conventions. This can be one of the following:

• Disabled— CDN support for VIC cards is disabled

• Enabled— CDN support is enabled for VIC cards.

CDN Control drop-down list

Whether the Ethernet Network naming convention is according to Consistent Device Naming (CDN) or the traditional way of naming conventions. This can be one of the following:

• Disabled— CDN support for VIC cards is disabled

• Enabled— CDN support is enabled for VIC cards.

NUMA toggle button

Whether the BIOS supports Non-Uniform Memory Access (NUMA). This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

Select Memory RAS configuration drop-down list

Determines how the memory reliability, availability, and serviceability (RAS) is configured for the server. This can be one of the following:

• Maximum Performance—System performance is optimized.

• Mirror Mode 1LM—System reliability is optimized by using half the system memory as backup.

• Partial Mirror Mode 1LM—Partial DIMM Mirroring creates a mirrored copy of a specific region of memory cells, rather than keeping the complete mirror copy. Partial Mirroring creates a mirrored region in memory map with the attributes of a partial mirror copy. Up to 50% of the total memory capacity can be mirrored, using up to 4 partial mirrors.

Select PPR Type drop-down list

Cisco IMC supports Hard-PPR, which permanently remaps accesses from a designated faulty row to a designated spare row.

This can be one of the following:

• Hard PPR—Support is enabled.

  Note	Hard PPR can be used only when Memory RAS Configuration is set to ADDDC Sparing. For other RAS selections, this setting should be set to Disabled.

• Disabled—Support is disabled.

BME DMA Mitigation toggle button

Allows you to disable the PCI BME bit to mitigate the threat from an unauthorized external DMA. This can be one of the following:

• Disabled—PCI BME bit is disabled in the BIOS.

• Enabled—PCI BME bit is enabled in the BIOS.

Above 4G Decoding drop-down list

Enables or disables MMIO above 4GB or not. This can be one of the following:

• Disabled—The server does not map I/O of 64-bit PCI devices to 4GB or greater address space.

• Enabled—The server maps I/O of 64-bit PCI devices to 4GB or greater address space.

Partial Memory Mirror Mode toggle button

The partial memory size is either in percentage or in GB. This can be one of the following:

• Percentage—The partial memory mirror is defined in percentage.

• Disabled—Partial memory mirror is disabled.

Partial Mirror percentage field

Percentage of memory to mirror above 4GB.

Enter an integer between 0 and 50.

Memory Size Limit in GB field

Use this option to reduce the size of the physical memory limit in GB.

Enter an integer between 0 and 65535.

Memory Thermal Throttling Mode drop-down list

This function is used for adjusting memory temperature. If memory temperature is excessively high after the function is enabled, the memory access rate is reduced and Baseboard Management Controller (BMC) adjusts the fan to cool down the memory to avoid any DIMM damage.

This can be one of the following:

• Disabled—Support is disabled.

• CLTT with PECI—Enables Closed Loop Thermal Throttling with Platform Environment Control Interface.

UMA drop-down list

Allows you to set UMA settings. This can be one of the following:

• Disable(All2All)

• Hemisphere(2-clusters)

Enhanced Memory Test drop-down list

You can enable advance DIMM testing during BIOS POST using this feature. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

• Auto—Automatically determines whether to perform the Enhanced Memory Test based on system conditions and requirements.

Adaptive Refresh Management Level drop-down list

Refresh management settings are read-only. Adaptive RFM allows the controller flexibility to choose additional RFM threshold settings called RFM levels. The RFM levels permit alignment of the controller-issued RFM commands with the in-DRAM management of these commands.

This can be one of the following:

• Default

• Level A

• Level B

• Level C

Error Check Scrub drop-down list

You can enable memory check with or without result collection. This can be one of the following:

• Disabled

• Enabled without Result Collection

• Enabled with Result Collection

Rank Margin Tool toggle button

Indicates whether the rank margin tool is used and whether a margin test (which tests the memory sequence and voltage signals) is performed. This can be one of the following:

• Disabled

• Enabled

MMIO High Base drop-down list

MMIO High Base configures the base address for the high memory-mapped I/O (MMIO) region, which is used to map device memory and I/O resources above the 4GB address space, optimizing system memory allocation and performance.

This can be one of the following:

• 512G—Sets the MMIO High Base to 512 gigabytes.

• 1T—Sets the MMIO High Base to 1 terabyte.

• 2T—Sets the MMIO High Base to 2 terabytes.

• 4T—Sets the MMIO High Base to 4 terabytes.

• 16T—Sets the MMIO High Base to 16 terabytes.

• 24T—Sets the MMIO High Base to 24 terabytes.

• 32T—Sets the MMIO High Base to 32 terabytes.

• 40T—Sets the MMIO High Base to 40 terabytes.

• 56T—Sets the MMIO High Base to 56 terabytes.

• Auto—The server dynamically sets the High Base value.

MMIO High Granularity Size drop-down list

MMIO High Granularity Size configures the granularity of the high memory-mapped I/O (MMIO) region, determining the size increments for allocating MMIO space above the 4GB address range, which helps optimize memory allocation and system performance.

This can be one of the following:

• 1G—Sets the MMIO High Granularity Size to 1 gigabyte.

• 4G—Sets the MMIO High Granularity Size to 4 gigabytes.

• 16G—Sets the MMIO High Granularity Size to 16 gigabytes.

• 32G—Sets the MMIO High Granularity Size to 32 gigabytes.

• 64G—Sets the MMIO High Granularity Size to 64 gigabytes.

• 256G—Sets the MMIO High Granularity Size to 256 gigabytes.

• 1024G—Sets the MMIO High Granularity Size to 1024 gigabytes.

• Auto—The server dynamically sets the High Granularity Size.

UEFI Memory Map Special Purpose Memory Flag

This setting determines the behavior of the UEFI memory map special knob, which impacts CXL cards under certain operating systems.

This can be one of the following:

• Disabled

• Enabled

ACPI SRAT Special Purpose Memory Flag

This setting allows or disallows the ACPI SRAT special purpose memory flag to be set when the UEFI Memory Map special purpose flag is enabled.

This can be one of the following:

• Disabled

• Enabled

Runtime Post Package Repair

Enables the soft post-package repairs of the corrected memory errors during OS runtime.

This can be one of the following:

• Disabled

• Enabled

Adjacent Cache Line Prefetcher toggle button

Whether the processor fetches cache lines in even or odd pairs instead of fetching just the required line. This can be one of the following:

• Disabled—The processor only fetches the required line.

• Enabled—The processor fetches both the required line and its paired line.

Hardware Prefetcher toggle button

Whether the processor allows the Intel hardware prefetcher to fetch streams of data and instruction from memory into the unified second-level cache when necessary. This can be one of the following:

• Disabled—The hardware prefetcher is not used.

• Enabled—The processor uses the hardware prefetcher when cache issues are detected.

DCU IP Prefetcher toggle button

Whether the processor uses the DCU IP Prefetch mechanism to analyze historical cache access patterns and preload the most relevant lines in the L1 cache. This can be one of the following:

• Disabled—The processor does not preload any cache data.

• Enabled—The DCU IP prefetcher preloads the L1 cache with the data it determines to be the most relevant.

DCU Streamer Prefetch drop-down list

Whether the processor uses the DCU IP Prefetch mechanism to analyze historical cache access patterns and preload the most relevant lines in the L1 cache. This can be one of the following:

• Disabled—The processor does not try to anticipate cache read requirements and only fetches explicitly requested lines.

• Enabled—The DCU prefetcher analyzes the cache read pattern and prefetches the next line in the cache if it determines that it may be needed.

Virtual Numa toggle button

Virtual NUMA (virtual non-uniform memory access) is a memory-access optimization method for VMware virtual machines (VMs), which helps prevent memory-bandwidth bottlenecks.

This can be one of the following:

• Disabled—Functionality is disabled.

• Enabled—Functionality is enabled.

CPU Performance drop-down list

Sets the CPU performance profile for the options listed above. This can be one of the following:

• Enterprise—All options are enabled.

• HPC—All options are enabled. This setting is also known as high performance computing.

• Hight Throughput—Only the DCU IP Prefetcher is enabled. The rest of the options are disabled.

• Custom—All performance profile options can be configured from the BIOS setup on the server. In addition, the Hardware Prefetcher and Adjacent Cache-Line Prefetch options can be configured as well.

LLC Dead Line drop-down list

In CPU non-inclusive cache scheme, MLC evictions are filled into the LLC. When lines are evicted from the MLC, the core can flag them as dead (not likely to be read again). The LLC has the option to drop dead lines and not fill them in the LLC.

If this feature is disabled, dead lines are always dropped and are never filled into the LLC.

If this feature is enabled, the LLC can fill dead lines into the LLC if there is free space available.

This can be one of the following:

• Disabled—Feature is disabled.

• Enabled—Feature is enabled.

• Auto—CPU determines the LLC dead line allocation.

XPT Remote Prefetch drop-down list

This feature allows an LLC request to be duplicated and sent to an appropriate memory controller in a remote machine based on the recent LLC history to reduce latency.

This can be one of the following:

• Disabled—Feature is disabled.

• Enabled—Feature is enabled.

• Auto—CPU determines the functionality.

UPI Link Enablement drop-down list

Enables the minimum number of UPI links required by the processor.

This can be one of the following:

• 1

• 2

• 4

• Auto

Enhanced CPU Performance drop-down list

Enhances CPU performance by adjusting server settings automatically.

The server should meet the following requirements in order to use this functionality:

• Server should not contain Barlow Pass DIMMs

• DIMM module size present in the Cisco UCS C220 M6 server should be less than 64GB and in Cisco UCS C240 M6 server should be less than 256GB

• No GPU cards are present in the server.

This can be one of the following:

• Disabled—The processor does not run with this functionality.

• Auto—Allows Cisco IMC to adjust server settings to increase performance.

UPI Power Management toggle button

UPI power management is used to conserve power on the server.

This can be one of the following:

• Disabled—The processor does not run with this functionality.

• Auto—Functionality is enabled.

LatencyOptimizedMode_M5 toggle button

This option indicates a mode within the server's BIOS settings that prioritizes reducing latency.

• Disabled—The processor does not run with this functionality.

• Enabled—Functionality is enabled.

Intel Virtualization Technology toggle button

Whether the processor uses Intel Virtualization Technology (VT), which allows a platform to run multiple operating systems and applications in independent partitions. This can be one of the following:

• Disabled—The processor does not permit virtualization.

• Enabled—The processor allows multiple operating systems in independent partitions.

Processor C6 Report drop-down list

Whether the BIOS sends the C6 report to the operating system. When the OS receives the report, it can transition the processor into the lower C6 power state to decrease energy usage while maintaining optimal processor performance. This can be one of the following:

• Auto

• Disabled—The BIOS does not send the C6 report.

• Enabled—The BIOS sends the C6 report, allowing the OS to transition the processor to the C6 low power state.

Processor C1E toggle button

Whether the CPU transitions to its minimum frequency when entering the C1 state. This can be one of the following:

• Disabled—The CPU continues to run at its maximum frequency in C1 state.

• Enabled—The CPU transitions to its minimum frequency. This option saves the maximum amount of power in C1 state.

EIST PSD Function drop-down list

EIST reduces the latency inherent with changing the voltage-frequency pair (P-state), thus allowing those transitions to occur more frequently. This allows for more granular, demand-based switching and can optimize the power-to-performance balance, based on the demands of the applications. This can be one of the following:

• HW ALL— The processor is coordinates the P-state among logical processors dependencies. The OS keeps the P-state request up to date on all logical processors.

• SW ALL—The OS Power Manager coordinates the P-state among logical processors with dependencies and initiates the transition on all of those Logical Processors.

Turbo Mode toggle button

Whether the processor uses Intel Turbo Boost Technology, which allows the processor to automatically increase its frequency if it is running below power, temperature, or voltage specifications. This can be one of the following:

• Disabled—The processor does not increase its frequency automatically.

• Enabled—The processor utilizes Turbo Boost Technology if required.

Boot Performance Mode drop-down list

Allows you to select the BIOS performance state that is set before the operating system handoff. This can be one of the following:

• Max Performance—Processor P-state ratio is maximum

• Max Efficient—Processor P-state ratio is minimum

SpeedStep (Pstates) toggle button

Whether the processor uses Enhanced Intel SpeedStep Technology, which allows the system to dynamically adjust processor voltage and core frequency. This technology can result in decreased average power consumption and decreased average heat production. This can be one of the following:

• Disabled—The processor never dynamically adjusts its voltage or frequency.

• Enabled—The processor utilizes Enhanced Intel SpeedStep Technology and enables all supported processor sleep states to further conserve power.

We recommend that you contact your operating system vendor to make sure the operating system supports this feature.

Processor CMCI toggle button

Allows the CPU to trigger interrupts on corrected machine check events. The corrected machine check interrupt (CMCI) allows faster reaction than the traditional polling timer. This can be one of the following:

• Disabled—Disables CMCI.

• Enabled—Enables CMCI. This is the default value.

HyperThreading [ALL] toggle button

Whether the processor uses Intel Hyper-Threading Technology, which allows multithreaded software applications to execute threads in parallel within each processor. This can be one of the following:

• Disabled—The processor does not permit hyperthreading.

• Enabled—The processor allows for the parallel execution of multiple threads.

Workload Configuration drop-down list

This feature allows for workload optimization. The options are Balanced and I/O Sensitive:

• Balanced

• IO Sensitive

Cores Enabled drop-down list

Allows you to disable one or more of the physical cores on the server. This can be one of the following:

• All—Enables all physical cores. This also enables Hyper Threading on the associated logical processor cores.

• 1 through 48—Specifies the number of physical processor cores that can run on the server. Each physical core has an associated logical core.

UPI Prefetch drop-down list

UPI prefetch is a mechanism to get the memory read started early on a DDR bus. This can be one of the following:

• Disabled—The processor does not preload any cache data.

• Enabled—The UPI prefetcher preloads the L1 cache with the data it determines to be the most relevant.

• Auto —CPU determines the UPI Prefetch mode.

Sub NUMA Clustering drop-down list

Whether the CPU supports sub NUMA clustering, in which the tag directory and the memory channel are always in the same region. This can be one of the following:

• Auto — The BIOS determines what Sub NUMA clustering is done.

• Disabled— Sub NUMA clustering does not occur.

• Enabled— Sub NUMA clustering is enabled.

Power Performance Tuning drop-down list

Determines if the BIOS or Operating System can turn on the energy performance bias tuning. The options are BIOS and OS.

• BIOS—Chooses BIOS for energy performance tuning.

• OS—Chooses OS for energy performance tuning.

• PECI—Chooses Platform Environmental Control Interface for energy performance tuning.

XPT Prefetch drop-down list

Whether XPT prefetch is used to enable a read request sent to the last level cache to issue a copy of that request to the memory controller prefetcher. This can be one of the following:

• Disabled—The CPU does not use the XPT Prefetch option.

• Enabled—The CPU enables the XPT prefetch option.

Package C State

The amount of power available to the server components when they are idle. This can be one of the following:

• No Limit—The server may enter any available C state.

• Auto —The CPU determines the physical elevation.

• C0 C1 State—The server provides all server components with full power at all times. This option maintains the highest level of performance and requires the greatest amount of power.

• C2—When the CPU is idle, the system reduces the power consumption further than with the C1 option. This requires less power than C1 or C0, but it takes the server slightly longer to return to high performance mode.

• C6 Retention—When the CPU is idle, the system reduces the power consumption further than with the C3 option. This option saves more power than C0, C1, or C3, but there may be performance issues until the server returns to full power.

Energy Performance Bias Config drop-down list

Allows you to determine whether system performance or energy efficiency is more important on this server. This can be one of the following:

• Performance — The server provides all server components with full power at all times. This option maintains the highest level of performance and requires the greatest amount of power.

• Balanced Performance — The server provides all server components with enough power to keep a balance between performance and power.

• Balanced Power — The server provides all server components with enough power to keep a balance between performance and power.

• Power — The server provides all server components with maximum power to keep reduce power consumption.

Hardware P-States drop-down list

Enables processor Hardware P-State. This can be one of the following:

• Disabled—HWPM is disabled.

• HWPM Native Mode—HWPM native mode is enabled.

• HWPM OOB Mode—HWPM Out-Of-Box mode is enabled.

• Native Mode with no Legacy (only GUI)

LLC Prefetch toggle button

Whether the processor uses the LLC Prefetch mechanism to fetch the date into the LLC. This can be one of the following:

• Disabled—The processor does not preload any cache data.

• Enabled—The LLC prefetcher preloads the L1 cache with the data it determines to be the most relevant.

Energy Efficient Turbo toggle button

When energy efficient turbo is enabled, the optimal turbo frequency of the CPU turns dynamic based on CPU utilization. The power/performance bias setting also influences energy efficient turbo. This can be one of the following:

• Disabled—Energy Efficient Turbo is disabled.

• Enabled—Energy Efficient Turbo is enabled.

Patrol Scrub drop-down list

Allows the system to actively search for, and correct, single bit memory errors even in unused portions of the memory on the server. This can be one of the following:

• Disabled—The system checks for memory ECC errors only when the CPU reads or writes a memory address.

• Enable at End of POST—The system checks for memory ECC errors after BIOS POST.

Processor EPP Profile drop-down list

Allows you to determine whether system performance or energy efficiency is more important on this server. This can be one of the following:

• Performance

• Balanced Performance

• Balanced Power

• Power

Intel Dynamic Speed Select toggle button

Intel Dynamic Speed Select modes allow you to run the CPU with different speed and cores in auto mode. This can be one of the following:

• Disabled—Intel Dynamic Speed Select is disabled.

• Enabled—Intel Dynamic Speed Select is enabled.

IOAT Configuration toggle button

IOAT Configuration enables or disables Intel I/O Acceleration Technology (IOAT), which improves data transfer efficiency and reduces CPU overhead by offloading memory copy operations. This can be one of the following:

• Disabled—Disables the feature.

• Enabled—Enables the feature.

PRMRR Size drop-down list

PRMRR Size configures the size of the Protected Range Memory Region Register (PRMRR), which is used to define protected memory regions for enhanced security and isolation in the system. This can be one of the following:

• 128MB—Defines a 128 megabyte protected memory region.

• 256MB—Defines a 256 megabyte protected memory region.

• 512MB—Defines a 512 megabyte protected memory region.

• 1GB—Defines a 1 gigabyte protected memory region.

• 2GB—Defines a 2 gigabyte protected memory region.

• 4GB—Defines a 4 gigabyte protected memory region.

• 8GB—Defines an 8 gigabyte protected memory region.

• 16GB—Defines a 16 gigabyte protected memory region.

• 32GB—Defines a 32 gigabyte protected memory region.

• 64GB—Defines a 64 gigabyte protected memory region.

• 128GB—Defines a 128 gigabyte protected memory region.

• 256GB—Defines a 256 gigabyte protected memory region.

• 512GB—Defines a 512 gigabyte protected memory region.

• Invalid Config.—Indicates an invalid configuration for the protected memory region.

• Auto—Automatically configures the protected memory region size based on system requirements.

Trusted Platform Module State toggle button

Trusted Platform Module (TPM) is a microchip designed to provide basic security-related functions primarily involving encryption keys. This option allows you to control the TPM Security Device support for the system. This can be one of the following:

• Disabled—The server does not use the TPM.

• Enabled—The server uses the TPM.

Security Device Support toggle button

You should enable TPM support to enable security device support. This can be one of the following:

• Disabled—Feature is disabled.

• Enabled—Feature is enabled if TPM is enabled.

SHA256 PCR Bank drop-down list

PCR bank available for OS when BIOS is performing measurements.

• Disabled—SHA256 PCR Bank is not available for BIOS.

• Enabled—SHA256 PCR Bank is available for BIOS.

SHA-1 PCR Bank drop-down list

PCR bank available for OS when BIOS is performing measurements.

• Disabled—SHA-1 PCR Bank is not available for BIOS.

• Enabled—SHA-1 PCR Bank is available for BIOS.

TPM Pending Operation drop-down list

Trusted Platform Module (TPM) Pending Operation option allows you to control the status of the pending operation. This can be one of the following:

• None—No action.

• TpmClear—Clears the pending operations.

SHA384 PCR Bank drop-down list

The Platform Configuration Register (PCR) is a memory location in the TPM. Multiple PCRs are collectively referred to as a PCR bank. A Secure Hash Algorithm 384-bit or SHA-384PCR Bank allows to enable or disable TPM security.

This can be one of the following:

• Disabled—The server does not use this feature.

• Enabled—The server uses this feature.

Intel Trusted Execution Technology Support toggle button

Can be Enabled only when Trusted Platform Module (TPM) is Enabled. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

TPM Minimal Physical Presence toggle button

This token allows you to apply recommended Microsoft default settings for TPM.

• Disabled—Support is disabled.

• Enabled—Support is enabled.

Total Memory Encryption (TME) toggle button

Allows you to provide the capability to encrypt the entirety of the physical memory of a system. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

Power on Password toggle button

This token requires that you set a BIOS password before using the F2 BIOS configuration. If enabled, password needs to be validated before you access BIOS functions such as IO configuration, BIOS set up, and booting to an operating system using BIOS. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

SW Guard Extensions (SGX) toggle button

Allows you to enable Software Guard Extensions (SGX) feature. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

Multikey Total Memory Encryption (MK-TME) toggle button

MK-TME allows you to have multiple encryption domains with one with own key. Different memory pages can be encrypted with different keys. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

SGX Pkg info In-Band Access toggle button

Allows you to enable SGX Package Info In-Band Access. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

SGX Factory Reset toggle button

Allows the system to perform SGX factory reset on subsequent boot. This deletes all registration data. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

Select Owner EPOCH input type drop-down list

Allows you to change the seed for the security key used for the locked memory region that is created. This can be one of the following:

• SGX Owner EPOCH activated—Does not change the current input type.

• SGX Owner EPOCH deactivated—Changes the current input type.

• Change to New Random Owner EPOCHs—Changes EPOCH to a system generated random number.

• Manual User Defined Owner EPOCHs—Changes the EPOCH seed to a hexadecimal value that you enter.

SGX QoS toggle button

Allows you to enable SGX QoS. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

SGX Auto MP Registration Agent toggle button

Allows you to enable the registration authority service to store the platform keys. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

SGX Write Enable toggle button

Allows you to enable SGX Write feature. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

SProcessor Epoch n field

Allows you to define the SGX EPOCH owner value for the EPOCH number designated by n.

SGX PUBKEY HASHn field

Allows you to set the Software Guard Extensions (SGX) value. This value can be set between:

• SGX PUBKEY HASH0—Between 7-0

• SGX PUBKEY HASH1—Between 15-8

• SGX PUBKEY HASH2—Between 23-16

• SGX PUBKEY HASH3—Between 31-24

DMA Control Opt-In Flag toggle button

DMA Control Opt-In Flag - Enabling this token allows the operating system to enable Input Output Memory Management Unit (IOMMU) to prevent the DMA attacks from possible malicious devices.

• Disabled—Support is disabled.

• Enabled—Support is enabled.

LIMIT CPU PA to 46 Bits toggle button

Enable this option for Intel^® VT-d enabling boot to boot with 2019 OS.

This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

TDX Secure Arbitration Mode (SEAM) Loader: toggle button

Enable this for a security feature that enables the initialization and management of Intel^® Trusted Domain Extensions (TDX) for secure virtualized environments.

This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

Trust Domain Extension (TDX) toggle button

Allows you to enhance the security of virtualized environments by creating isolated execution environments, known as Trust Domains, that protect sensitive data and code from other software, including the hypervisor.

This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

MLOM Link Speed drop-down list

This option allows you to restrict the maximum speed of an adapter card installed in PCIe MLOM slot. This can be one of the following:

• Disabled—The maximum speed is not restricted.

• Auto—System selects the maximum speed allowed.

• GEN1—2.5GT/s (gigatransfers per second) is the maximum speed allowed.

• GEN2—5GT/s is the maximum speed allowed.

• GEN3—8GT/s is the maximum speed allowed.

• GEN3—16GT/s is the maximum speed allowed.

• GEN4—Link speed can reach up to fourth generation.

• GEN5—Link speed can reach up to fifth generation.

MLOM OptionROM drop-down list

This options allows you to control the Option ROM execution of the PCIe adapter connected to the MLOM slot. This can be one of the following:

• Disabled—Does not execute Option ROM of the PCIe adapter connected to the MLOM slot.

• Enabled—Executes Option ROM of the PCIe adapter connected to the MLOM slot.

PCIe Slotn Link Speed drop-down list

System IO Controller n (SIOCn) add-on slot (designated by n) link speed. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto— The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

• GEN5—Link speed can reach up to fifth generation.

PCIe Slot MSTOR Link Speed drop-down list

Link speed for PCIe front slot designated by slot n. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto—The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

• GEN5—Link speed can reach up to fifth generation.

PCI Slotn OptionROM drop-down list

Whether the server can use the Option ROMs present in the PCIe card slot designated by n. This can be one of the following:

• Disabled—Option ROM for slot n is not available.

• Enabled—Option ROM for slot n is available.

MRAID Link Speed drop-down list

RAID IO Controller n (SIOCn) add-on slot (designated by n) link speed. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto— The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

• GEN5—Link speed can reach up to fifth generation.

MRAID OptionROM

Whether the server can use the RAID Option ROMs present in the PCIe card slot designated by n. This can be one of the following:

• Disabled—Option ROM for slot n is not available.

• Enabled—Option ROM for slot n is available.

Front NVME-n Link Speed drop-down list

Link speed for NVMe front slot designated by slot n. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto—The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

• GEN5—Link speed can reach up to fifth generation.

Front NVME-n OptionROM drop-down list

This options allows you to control the Option ROM execution of the PCIe adapter connected to the SSD:NVMe slot n. This can be one of the following:

• Disabled—Does not execute Option ROM of the PCIe adapter connected to the SSD:NVMe1 slot.

• Enabled—Executes Option ROM of the PCIe adapter connected to the SSD:NVMe1 slot

VGA Priority drop-down list

Allows you to set the priority for VGA graphics devices if multiple VGA devices are found in the system. This can be one of the following:

• OnBoard—Priority is given to the onboard VGA device. BIOS post screen and OS boot are driven through the onboard VGA port.

• OffBoard—Priority is given to the PCIE Graphics adapter. BIOS post screen and OS boot are driven through the external graphics adapter port.

• OnBoard VGA Disabled—Priority is given to the PCIe Graphics adapter, and the onboard VGA device is disabled. The vKVM does not function when the onboard VGA is disabled.

IPv4 PXE Support toggle button

Enables or disables IPv4 support for PXE. This can be one of the following

• Disabled—IPv4 PXE support is not available.

• Enabled—IPv4 PXE support is always available.

IPv6 PXE Support toggle button

Enables or disables IPv6 support for PXE. This can be one of the following

• Disabled—IPv6 PXE support is not available.

• Enabled—IPv6 PXE support is always available.

SR-IOV Support toggle button

SR-IOV feature allows a PCIe device to appear to be multiple separate physical PCIe devices. This can be one of the following:

• Disabled—SR-IOV feature is disabled.

• Enabled—SR-IOV feature is enabled.

PCIe ARI Support drop-down list

Whether PCI Alternative Routing ID Interpretation (ARI) support in Windows is enabled. This can be one of the following:

• Auto—ARI support is set to auto controlled by the system.

• Disabled—ARI support is not available.

• Enabled—ARI support is always available.

Re-Size BAR Support toggle button

This feature allows the system to dynamically resize the BAR, providing more flexible and efficient use of memory resources.

• Disabled—Re-Size BAR Support is disabled.

• Enabled—Re-Size BAR Support is enabled.

IPv4 HTTP Support toggle button

Enables or disables IPv4 support for HTTP. This can be one of the following:

• Disabled—IPv4 HTTP support is not available.

• Enabled—IPv4 HTTP support is always available.

IPv6 HTTP Support toggle button

Enables or disables IPv6 support for HTTP. This can be one of the following:

• Disabled—IPv6 HTTP support is not available.

• Enabled—IPv6 HTTP support is always available.

IIO eDPC Support drop-down list

eDPC allows a downstream link to be disabled after an uncorrectable error, making recovery possible in a controlled and robust manner.

This can be one of the following:

• Disabled—eDPC support is disabled.

• On Fatal and Non-Fatal Errors—eDPC is enabled for both fatal and non-fatal errors.

PCIe Ten Bit Tag Support field

Enables PCIe ten bit tags for supported devices. This can be one of the following:

• Disabled—PCIe ten bit tags support is disabled in the BIOS.

• Enabled—PCIe ten bit tags support is enabled in the BIOS.

Network Stack drop-down list

This option allows you to monitor IPv6 and IPv4. This can be one of the following

• Disabled—Network Stack support is not available.

  Note	When disabled, the value set for IPV4 PXE Support does not impact the system.

• Enabled—Network Stack support is always available.

Reboot Host Immediately check box

If the Reboot Host Immediately check box is checked, the server is rebooted immediately and the new BIOS settings go into effect. Otherwise the changes are saved until the server is manually rebooted.

MLOM OptionROM drop-down list

This options allows you to control the Option ROM execution of the PCIe adapter connected to the MLOM slot. This can be one of the following:

• Disabled—Does not execute Option ROM of the PCIe adapter connected to the MLOM slot.

• Enabled—Executes Option ROM of the PCIe adapter connected to the MLOM slot.

MLOM Link Speed drop-down list

This option allows you to restrict the maximum speed of an adapter card installed in PCIe MLOM slot. This can be one of the following:

• Disabled—The maximum speed is not restricted.

• Auto—System selects the maximum speed allowed.

• GEN1—2.5GT/s (gigatransfers per second) is the maximum speed allowed.

• GEN2—5GT/s is the maximum speed allowed.

• GEN3—8GT/s is the maximum speed allowed.

• GEN3—16GT/s is the maximum speed allowed.

PCIe Slotn OptionROM drop-down list

Whether the server can use the Option ROMs present in the PCIe card slot designated by n. This can be one of the following:

• Disabled—Option ROM for slot n is not available.

• Enabled—Option ROM for slot n is available.

PCIe Slotn Link Speed drop-down list

System IO Controller n (SIOCn) add-on slot (designated by n) link speed. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto— The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

MRAID1 OptionROM

Whether the server can use the RAID Option ROMs present in the PCIe card slot designated by n. This can be one of the following:

• Disabled—Option ROM for slot n is not available.

• Enabled—Option ROM for slot n is available.

MRAID1 Link Speed drop-down list

RAID IO Controller n (SIOCn) add-on slot (designated by n) link speed. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto— The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

MRAID2 OptionROM

Whether the server can use the RAID Option ROMs present in the PCIe card slot designated by n. This can be one of the following:

• Disabled—Option ROM for slot n is not available.

• Enabled—Option ROM for slot n is available.

MRAID2 Link Speed drop-down list

RAID IO Controller n (SIOCn) add-on slot (designated by n) link speed. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto— The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

Front NVME-n OptionROM drop-down list

This options allows you to control the Option ROM execution of the PCIe adapter connected to the SSD:NVMe slot n. This can be one of the following:

• Disabled—Does not execute Option ROM of the PCIe adapter connected to the SSD:NVMe1 slot.

• Enabled—Executes Option ROM of the PCIe adapter connected to the SSD:NVMe1 slot

Front NVME-n Link Speed drop-down list

Link speed for NVMe front slot designated by slot n. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto—The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

PCIe Slot MSTOR Link Speed drop-down list

Link speed for PCIe front slot designated by slot n. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto—The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

IPV6 PXE Support drop-down list

Enables or disables IPv6 support for PXE. This can be one of the following

• Disabled—IPv6 PXE support is not available.

• Enabled—IPv6 PXE support is always available.

IPV4 PXE Support drop-down list

Enables or disables IPv4 support for PXE. This can be one of the following

• Disabled—IPv4 PXE support is not available.

• Enabled—IPv4 PXE support is always available.

PCIe ARI Support drop-down list

Whether PCI Alternative Routing ID Interpretation (ARI) support in Windows is enabled. This can be one of the following:

• Auto—ARI support is set to auto controlled by the system.

• Disabled—ARI support is not available.

• Enabled—ARI support is always available.

SR-IOV Support drop-down list

SR-IOV feature allows a PCIe device to appear to be multiple separate physical PCIe devices. This can be one of the following:

• Disabled—SR-IOV feature is disabled.

• Enabled—SR-IOV feature is enabled.

IPv6 HTTP Support drop-down list

Enables or disables IPv6 support for HTTP. This can be one of the following:

• Disabled—IPv6 HTTP support is not available.

• Enabled—IPv6 HTTP support is always available.

IPv4 HTTP Support drop-down list

Enables or disables IPv4 support for HTTP. This can be one of the following:

• Disabled—IPv4 HTTP support is not available.

• Enabled—IPv4 HTTP support is always available.

IIO eDPC Support drop-down list

eDPC allows a downstream link to be disabled after an uncorrectable error, making recovery possible in a controlled and robust manner.

This can be one of the following:

• Disabled—eDPC support is disabled.

• On Fatal and Non-Fatal Errors—eDPC is enabled for both fatal and non-fatal errors.

PCIe Ten Bit Tag Support field

Enables PCIe ten bit tags for supported devices. This can be one of the following:

• Disabled—PCIe ten bit tags support is disabled in the BIOS.

• Enabled—PCIe ten bit tags support is enabled in the BIOS.

Network Stack drop-down list

This option allows you to monitor IPv6 and IPv4. This can be one of the following

• Disabled—Network Stack support is not available.

  Note	When disabled, the value set for IPV4 PXE Support does not impact the system.

• Enabled—Network Stack support is always available.

Reboot Host Immediately check box

If the Reboot Host Immediately check box is checked, the server is rebooted immediately and the new BIOS settings go into effect. Otherwise the changes are saved until the server is manually rebooted.

FRB 2 Timer toggle button

Whether the FRB2 timer is used by Cisco IMC to recover the system if it hangs during POST. This can be one of the following:

• Disabled—The FRB2 timer is not used.

• Enabled—The FRB2 timer is started during POST and used to recover the system if necessary.

OS Watchdog Timer Policy drop-down list

What action the system takes if the watchdog timer expires. This can be one of the following:

• Power Off—The server is powered off if the watchdog timer expires during OS boot.

• Reset—The server is reset if the watchdog timer expires during OS boot.

OS Watchdog Timer Timeout drop-down list

If OS does not boot within the specified time, OS watchdog timer expires and system takes action according to timer policy. This can be one of the following:

• 5 Minutes—The OS watchdog timer expires 5 minutes after it begins to boot.

• 10 Minutes—The OS watchdog timer expires 10 minutes after it begins to boot.

• 15 Minutes—The OS watchdog timer expires 15 minutes after it begins to boot.

• 20 Minutes—The OS watchdog timer expires 20 minutes after it begins to boot.

OS Watchdog Timer toggle button

Whether the BIOS programs the watchdog timer with a specified timeout value. This can be one of the following:

• Disabled—The watchdog timer is not used to track how long the server takes to boot.

• Enabled—The watchdog timer tracks how long the server takes to boot. If the server does not boot within the length of time specified in the OS Boot Watchdog Timer Timeout field, the Cisco IMC logs an error and takes the action specified in the OS Boot Watchdog Policy field.

Flow Control drop-down list

Whether a handshake protocol is used for flow control. Request to Send / Clear to Send (RTS/CTS) helps to reduce frame collisions that can be introduced by a hidden terminal problem. This can be one of the following:

• None—No flow control is used.

• RTS/CTS—RTS/CTS is used for flow control.

Baud Rate drop-down list

What Baud rate is used for the serial port transmission speed. If you disable Console Redirection, this option is not available. This can be one of the following:

• 9.6k—A 9,600 Baud rate is used.

• 19.2k—A 19,200 Baud rate is used.

• 38.4k—A 38,400 Baud rate is used.

• 57.6k—A 57,600 Baud rate is used.

• 115.2k—A 115,200 Baud rate is used.

This setting must match the setting on the remote terminal application.

Terminal type drop-down list

What type of character formatting is used for console redirection. This can be one of the following:

• PC-ANSI—The PC-ANSI terminal font is used.

• VT100—A supported VT100 video terminal and its character set are used.

• VT100-PLUS—A supported VT100-plus video terminal and its character set are used.

• VT-UTF8—A video terminal with the UTF-8 character set is used.

Console Redirection drop-down list

Allows a serial port to be used for console redirection during POST and BIOS booting. After the OS has booted, console redirection is irrelevant. This can be one of the following:

• COM 0—Enables console redirection on COM 1 during POST.

• COM 1—Enables console redirection on COM 1 during POST.

• Disabled—No console redirection occurs during POST.

CDN Control toggle button

Whether the Ethernet Network naming convention is according to Consistent Device Naming (CDN) or the traditional way of naming conventions. This can be one of the following:

• Disabled— CDN support for VIC cards is disabled

• Enabled— CDN support is enabled for VIC cards.

PCIe Slots CDN Control toggle button

Whether the Ethernet Network naming convention is according to Consistent Device Naming (CDN) or the traditional way of naming conventions. This can be one of the following:

• Disabled— CDN support for VIC cards is disabled

• Enabled— CDN support is enabled for VIC cards.

BIOS Techlog Level

This option denotes the type of messages in BIOS tech log file.

• Minimum - Critical messages will be displayed in the log file.

• Normal - Warning and loading messages will be displayed in the log file.

• Maximum - Normal and information related messages will be displayed in the log file.

Default value: Minimum.

Reboot Host Immediately check box

If the Reboot Host Immediately check box is checked, the server is rebooted immediately and the new BIOS settings go into effect. Otherwise the changes are saved until the server is manually rebooted.

Above 4G Decoding toggle button

Enables or disables MMIO above 4GB or not. This can be one of the following:

• Disabled—The server does not map I/O of 64-bit PCI devices to 4GB or greater address space.

• Enabled—The server maps I/O of 64-bit PCI devices to 4GB or greater address space.

NUMA Nodes per Socket drop-down list

Allows you to configure the memory NUMA domains per socket. This can be one of the following:

• Auto—Number of channels is set to auto.

• NPS0—One NUMA node per system.

• NPS1—One NUMA node per socket.

• NPS2—Two NUMA nodes per socket, one per Left/Right Half of the SoC.

• NPS4—Four NUMA nodes per socket, one per Quadrant.

Chipselect Interleaving drop-down list

Whether memory blocks across the DRAM chip selects for node 0 are interleaved. This can be one of the following:

• Disabled—Chip selects are not interleaved within the memory controller.

• Auto—The CPU automatically determines how to interleave chip selects.

Bank Group Swap

Determines how physical addresses are assigned to applications. This can be one of the following:

• Auto—The CPU automatically determines how to assign physical addresses to applications.

• Disabled—Bank group swap is not used.

• Enabled—Bank group swap is used to improve the performance of applications.

IOMMU drop-down list

Input Output Memory Management Unit (IOMMU) allows AMD processors to map virtual addresses to physical addresses. This can be one of the following:

• Auto—The CPU determines how map these addresses.

• Disabled—IOMMU is not used.

• Enabled—Address mapping takes place through the IOMMU.

SMEE drop-down list

Whether the processor uses the Secure Memory Encryption Enable (SMEE) function, which provides memory encryption support. This can be one of the following:

• Auto—The CPU determines how map these addresses.

• Disabled—The processor does not use the SMEE function.

• Enabled—The processor uses the SMEE function.

TSME drop-down list

Allows you to enable Transparent Secure Memory Encryption (TSME). This can be one of the following:

• Auto—Feature usage is set to auto.

• Disabled—The processor does not use the TSME function.

• Enabled—The processor uses the TSME function.

SEV-SNP Support drop-down list

Allows you to enable Secure Nested Paging feature. This can be one of the following:

• Disabled—The processor does not use the SEV-SNP function.

• Enabled—The processor uses the SEV-SNP function.

SNP Memory Coverage drop-down list

Allows you to configure SNP memory coverage. This can be one of the following:

• Auto—System decides the memory coverage.

• Disabled—The processor does not use this function.

• Enabled—This feature is enabled.

• Custom—Custom size can be defined in SNP Memory Size to Cover.

SNP Memory Size to Cover in MB (0 - 1048576 MB) field

Allows you to configure SNP memory size.

Enter the value in the range (0 - 1048576 MB).

BME DMA Mitigation toggle button

Allows you to disable the PCI BME bit to mitigate the threat from an unauthorized external DMA. This can be one of the following:

• Disabled—PCI BME bit is disabled in the BIOS.

• Enabled—PCI BME bit is enabled in the BIOS.

Post Package Repair field

Cisco IMC supports Hard-PPR, which permanently remaps accesses from a designated faulty row to a designated spare row. This can be one of the following:

• Hard PPR—Support is enabled.

• Disabled—Support is disabled.

Runtime Post Package Repairtoggle button

This is a specific configuration setting related to the system's ability to perform repairs on the processor's package during runtime.

• Disabled—The processor does not use the function.

• Enabled—The processor uses the function.

Burst and Postponed Refresh toggle button

This option relates to memory refresh operations and affect the way the system handles memory refresh cycles, which are necessary to maintain data integrity in DRAM (Dynamic Random Access Memory).

• Disabled—The processor does not use the function.

• Enabled—The processor uses the function.

DRAM Scrub Time field

Select a value to indicate the number of hours to scrub the entire memory. This can be one of the following:

• Auto — Feature is set to auto mode.

• Disabled — Support is disabled.

• 1 hour

• 4 hours

• 8 hours

• 16 hours

• 24 hours

• 48 hours

SEV-ES ASID Space Limit

The SEV-ES ASID Space Limit BIOS setting determines the number of ASIDs for AMD® SEV-ES, affecting VM memory encryption and isolation. Adjusting it balances security needs with system resources.

Enter an integer between 1 and 1007.

Memory Interleaving field

Allows for disabling memory interleaving. Note that NUMA nodes per socket will be honored regardless of this setting. This can be one of the following:

• Auto—Feature is set to auto mode.

• Disabled—Support is disabled.

Memory Refresh Rate field

Controls the refresh rate of the memory controller and might affect the memory performance and power depending on memory configuration and workload. This can be one of the following:

• 1x Refresh

• 2x Refresh

Enhanced Memory Test drop-down list

This feature is applicable only to Samsung, Hynix and Micron DIMMs.

You can enable advance DIMM testing during BIOS POST using this feature. This can be one of the following:

• Auto—Feature is set to auto mode.

• Disabled—Support is disabled.

• Enabled—Support is disabled.

Reboot Host Immediately check box

If the Reboot Host Immediately check box is checked, the server is rebooted immediately and the new BIOS settings go into effect. Otherwise the changes are saved until the server is manually rebooted.

Core Performance Boost drop-down list

Whether the AMD processor increases its frequency on some cores when it is idle or not being used much. This can be one of the following:

• Auto—The CPU automatically determines how to boost performance.

• Disabled—Core performance boost is disabled.

Global C-state Control drop-down list

Whether the AMD processors control IO-based C-state generation and DF C-states This can be one of the following:

• Auto—The CPU automatically determines how to control IO-based C-state generation.

• Disabled—Global C-state control is disabled.

• Enabled—Global C-state control is enabled.

L1 Stream HW Prefetcher drop-down list

Whether the processor allows the AMD hardware prefetcher to speculatively fetch streams of data and instruction from memory into the L1 cache when necessary. This can be one of the following:

• Auto—The CPU determines how to place data from I/O devices into the processor cache.

• Disabled—The hardware prefetcher is not used.

• Enabled—The processor uses the hardware prefetcher when cache issues are detected.

L2 Stream HW Prefetcher drop-down list

Whether the processor allows the AMD hardware prefetcher to speculatively fetch streams of data and instruction from memory into the L2 cache when necessary. This can be one of the following:

• Auto—The CPU determines how to place data from I/O devices into the processor cache.

• Disabled—The hardware prefetcher is not used.

• Enabled—The processor uses the hardware prefetcher when cache issues are detected.

Determinism Slider drop-down list

Allows AMD processors to determine how to operate. This can be one of the following:

• Auto—The CPU automatically uses default power determinism settings.

• Performance—Processor operates at the best performance in a consistent manner.

• Power—Processor operates at the maximum allowable performance on a per die basis.

CPPC drop-down list

Allows you to configure Collaborative Processor Performance Control.

This can be one of the following:

• Auto—The CPU automatically uses default CPPC settings.

• Disabled—Feature is disabled.

• Enabled—Collaborative Processor Performance is enabled.

Power Profile Selection F19h drop-down list

The Power Profile Selection F19h BIOS setting allows you to choose a predefined power management profile tailored for specific performance or energy efficiency goals on AMD® Family 19h processors. This setting optimizes the CPU power consumption and performance characteristics based on the selected profile.

This can be one of the following:

• High Performance Mode—High Performance mode is enabled.

• Efficiency Mode—Efficiency mode is enabled.

• Maximum IO Performance Mode—Maximum IO Performance mode is enabled.

• Balanced Memory Performance Mode—Balanced Memory Performance mode is enabled.

Enhanced CPU Performance drop-down list

Enhances CPU performance by adjusting server settings automatically.

The server should meet the following requirements in order to use this functionality:

• Server should not contain Barlow Pass DIMMs

• DIMM module size present in the server should be less than 64GB

• No GPU cards are present in the server.

This can be one of the following:

• Disabled—The processor does not run with this functionality.

• Auto—Allows Cisco IMC to adjust server settings to increase performance.

Reboot Host Immediately check box

If the Reboot Host Immediately check box is checked, the server is rebooted immediately and the new BIOS settings go into effect. Otherwise the changes are saved until the server is manually rebooted.

Security Device Support toggle button

This option allows you to control the Security Device support for the system. This can be one of the following:

• Disabled—The option is disabled.

• Enabled—The server is disabled.

Trusted Platform Module State toggle button

Trusted Platform Module (TPM) is a microchip designed to provide basic security-related functions primarily involving encryption keys. This option allows you to control the TPM Security Device support for the system. This can be one of the following:

• Disabled—The server does not use the TPM.

• Enabled—The server uses the TPM.

SHA-1 PCR Bank toggle button

Enable or Disable SHA-1 PCR Bank. This can be one of the following:

• Disabled—The server does not use this feature.

• Enabled—The server uses this feature.

SHA256 PCR Bank toggle button

Enable or Disable SHA256 PCR Bank. This can be one of the following:

• Disabled—The server does not use this feature.

• Enabled—The server uses this feature.

SHA384 PCR Bank toggle button

Enable or Disable SHA384 PCR Bank. This can be one of the following:

• Disabled—The server does not use this feature.

• Enabled—The server uses this feature.

TPM Pending Operation drop-down list

Trusted Platform Module (TPM) Pending Operation option allows you to control the status of the pending operation. This can be one of the following:

• None—No action.

• TpmClear—Clears the pending operations.

Power ON Password drop-down list

This token requires that you set a BIOS password before using the F2 BIOS configuration. If enabled, password needs to be validated before you access BIOS functions such as IO configuration, BIOS set up, and booting to an operating system using BIOS. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

Reboot Host Immediately check box

If the Reboot Host Immediately check box is checked, the server is rebooted immediately and the new BIOS settings go into effect. Otherwise the changes are saved until the server is manually rebooted.

SVM Mode toggle button

Whether the processor uses AMD Secure Virtual Machine Technology. This can be one of the following: This can be one of the following:

• Disabled—The processor does not use SVM Technology.

• Enabled—The processor uses SVM Technology.

SMT Mode drop-down list

Whether the processor uses AMD Simultaneous MultiThreading Technology, which allows multithreaded software applications to execute threads in parallel within each processor. This can be one of the following:

• Auto—The processor allows for the parallel execution of multiple threads.

• Disabled—The processor does not use SMT Mode.

• Enabled—The processor uses SMT Mode.

CPU Downcore control F19 M10h-1Fh drop-down list

The ability to remove one or more cores from operation is supported in the silicon. It may be desirable to reduce the number of cores due to OS restrictions, or power reduction requirements of the system. This item allows the control of how many cores are running. This setting can only reduce the number of cores from those available in the processor. This can be one of the following:

• Auto—The CPU determines how many cores need to be enabled.

• One (1+0)—One cores enabled on one CPU complex.

• TWO (2+0)—Two cores enabled on one CPU complex.

• THREE (3+0)—Three cores enabled on one CPU complex.

• FOUR (4+0)—Four cores enabled on one CPU complex.

• Five (5+0)—Five cores enabled on one CPU complex.

• SIX (6+0)—Six cores enabled on one CPU complex.

• SEVEN (7+0)—Seven cores enabled on one CPU complex.

Downcore control F19 MA0h-AFh drop-down list

Allows the AMD processors to disable cores and, thus, select how many cores to enable. This can be one of the following:

• Auto—The CPU determines how many cores need to be enabled.

• TWO (1+1)—Two cores enabled on one CPU complex.

• FOUR (2+2)—Four cores enabled on one CPU complex.

• SIX (3+3)—Six cores enabled on one CPU complex.

• EIGHT (4+4)—Eight cores enabled on one CPU complex.

• TEN (5+5)—Ten cores enabled on one CPU complex.

• TWELVE (6+6)—Twelve cores enabled on one CPU complex.

• FOURTEEN (7+7)—Fourteen cores enabled on one CPU complex.

Fixed SOC P-State SP5 F19h (0 - 2 P State) drop-down list

This option defines the target PState when APBDIS is set. Px – Specify a valid PState for the processor installed. This can be one of the following:

• P0

• P1

• P2

• P3

• Auto

APBDIS drop-down list

Allows you to select the APB Disable value for the SMU. This can be one of the following:

• 0—Clear ApbDis to SMU

• 1—Set ApbDis to SMU.

• Auto—The CPU determines the value.

CCD Control drop-down list

Allows you to specify the number of CCDs that are desired to be enable in the system. This can be one of the following:

• Auto—The maximum CCDs provided by the processor is enabled.

• 2 CCDs

• 3 CCDs

• 4 CCDs

• 6 CCDs

Streaming Stores Control drop-down list

Enables the streaming stores functionality. This can be one of the following:

• Auto—Set to auto mode.

• Disabled—Feature is disabled.

• Enabled—Feature is enabled.

ACPI SRAT L3 Cache As NUMA Domain drop-down list

Creates a layer of virtual domains on top of the physical domains in which each CCX is declared to be in its on domain. This can be one of the following:

• Auto—Set to auto mode.

• Disabled—Use NPS settings for domain configuration.

• Enabled— Each CCX is declared to be in its own domain.

DF C-States drop-down list

When long duration idleness is expected in a system, this control allows the system to transition into a DF Cstate which can set the system into an even lower power state. This can be one of the following:

• Auto—Set to auto mode.

• Disabled—Long periods of idleness are not expected so no power savings would be achieved.

• Enabled— This option is active, saving power when the system is very idle.

Local APIC Mode drop-down list

This control selects the APIC mode to be used.

• Auto—Set to auto mode.

• Compatibility—Set to Compatibility mode.

• XAPIC—Set to XAPIC mode.

• X2APIC—Set to X2APIC mode.

4-link xGMI max speed

This setting allows you to manually specify the number of lanes used for the xGMI (Inter-chip Global Memory Interconnect) link, which can impact the bandwidth and performance of the data transfer between CPUs. Adjusting this setting can be used for troubleshooting, performance tuning, or to ensure compatibility with certain workloads or system configurations.

This can be one of the following:

• Auto—Set to auto mode.

• 20Gbps—Set to 20Gbps.

• 25Gbps—Set to 25Gbps.

• 32Gbps—Set to 32Gbps.

DF PState Frequency Optimizer

Enable or disable DF PState Frequency Optimizer. This can be one of the following:

• Auto—Set to auto mode.

• Disabled—Feature is disabled.

• Enabled—Feature is enabled.

AVX512

The AVX512 BIOS setting enables or disables the use of AVX512 instruction set extensions, which are advanced vector extensions used by certain Intel® processors to improve performance for heavy computational tasks Adjusting this setting can affect compatibility and stability with some software, as well as influence CPU power consumption and heat output. This can be one of the following:

• Auto—Set to auto mode.

• Disabled—Feature is disabled.

• Enabled—Feature is enabled.

Power Down Enable

This setting controls whether the memory (RAM) can enter a low power state when the system is idle or during periods of low usage. Enabling this setting typically allows the RAM to consume less power, potentially saving energy and reducing heat output, while disabling it keeps the RAM fully powered for possibly quicker wake-up times at the expense of higher power consumption. This can be one of the following:

• Auto—Set to auto mode.

• Disabled—Feature is disabled.

• Enabled—Feature is enabled.

xGMI Force Link Width

This setting allows users to manually specify the number of lanes used for the xGMI (Inter-chip Global Memory Interconnect) link, which can impact the bandwidth and performance of the data transfer between CPUs. Adjusting this setting can be used for troubleshooting, performance tuning, or to ensure compatibility with certain workloads or system configurations.

This can be one of the following:

• Auto—Set to auto mode.

• 0—Set to 0.

• 1—Set to 1.

• 2—Set to 2.

MLOM OptionROM drop-down list

This options allows you to control the Option ROM execution of the PCIe adapter connected to the MLOM slot. This can be one of the following:

• Disabled—Does not execute Option ROM of the PCIe adapter connected to the MLOM slot.

• Enabled—Executes Option ROM of the PCIe adapter connected to the MLOM slot.

MLOM Link Speed drop-down list

This option allows you to restrict the maximum speed of an adapter card installed in PCIe MLOM slot. This can be one of the following:

• Disabled—The maximum speed is not restricted.

• Auto—System selects the maximum speed allowed.

• GEN1—2.5GT/s (gigatransfers per second) is the maximum speed allowed.

• GEN2—5GT/s is the maximum speed allowed.

• GEN3—8GT/s is the maximum speed allowed.

• GEN3—16GT/s is the maximum speed allowed.

PCIe Slotn OptionROM drop-down list

Whether the server can use the Option ROMs present in the PCIe card slot designated by n. This can be one of the following:

• Disabled—Option ROM for slot n is not available.

• Enabled—Option ROM for slot n is available.

PCIe Slotn Link Speed drop-down list

System IO Controller n (SIOCn) add-on slot (designated by n) link speed. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto— The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

MRAID1 OptionROM

Whether the server can use the RAID Option ROMs present in the PCIe card slot designated by n. This can be one of the following:

• Disabled—Option ROM for slot n is not available.

• Enabled—Option ROM for slot n is available.

MRAID1 Link Speed drop-down list

RAID IO Controller n (SIOCn) add-on slot (designated by n) link speed. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto— The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

MRAID2 OptionROM

Whether the server can use the RAID Option ROMs present in the PCIe card slot designated by n. This can be one of the following:

• Disabled—Option ROM for slot n is not available.

• Enabled—Option ROM for slot n is available.

MRAID2 Link Speed drop-down list

RAID IO Controller n (SIOCn) add-on slot (designated by n) link speed. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto— The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

Front NVME-n OptionROM drop-down list

This options allows you to control the Option ROM execution of the PCIe adapter connected to the SSD:NVMe slot n. This can be one of the following:

• Disabled—Does not execute Option ROM of the PCIe adapter connected to the SSD:NVMe1 slot.

• Enabled—Executes Option ROM of the PCIe adapter connected to the SSD:NVMe1 slot

Front NVME-n Link Speed drop-down list

Link speed for NVMe front slot designated by slot n. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto—The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

PCIe Slot MSTOR Link Speed drop-down list

Link speed for PCIe front slot designated by slot n. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto—The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

IPV6 PXE Support drop-down list

Enables or disables IPv6 support for PXE. This can be one of the following

• Disabled—IPv6 PXE support is not available.

• Enabled—IPv6 PXE support is always available.

IPV4 PXE Support drop-down list

Enables or disables IPv4 support for PXE. This can be one of the following

• Disabled—IPv4 PXE support is not available.

• Enabled—IPv4 PXE support is always available.

PCIe ARI Support drop-down list

Whether PCI Alternative Routing ID Interpretation (ARI) support in Windows is enabled. This can be one of the following:

• Auto—ARI support is set to auto controlled by the system.

• Disabled—ARI support is not available.

• Enabled—ARI support is always available.

SR-IOV Support drop-down list

SR-IOV feature allows a PCIe device to appear to be multiple separate physical PCIe devices. This can be one of the following:

• Disabled—SR-IOV feature is disabled.

• Enabled—SR-IOV feature is enabled.

IPv6 HTTP Support drop-down list

Enables or disables IPv6 support for HTTP. This can be one of the following:

• Disabled—IPv6 HTTP support is not available.

• Enabled—IPv6 HTTP support is always available.

IPv4 HTTP Support drop-down list

Enables or disables IPv4 support for HTTP. This can be one of the following:

• Disabled—IPv4 HTTP support is not available.

• Enabled—IPv4 HTTP support is always available.

PCIe Ten Bit Tag Support field

Enables PCIe ten bit tags for supported devices. This can be one of the following:

• Disabled—PCIe ten bit tags support is disabled in the BIOS.

• Enabled—PCIe ten bit tags support is enabled in the BIOS.

Network Stack drop-down list

This option allows you to monitor IPv6 and IPv4. This can be one of the following

• Disabled—Network Stack support is not available.

  Note	When disabled, the value set for IPV4 PXE Support does not impact the system.

• Enabled—Network Stack support is always available.

Reboot Host Immediately check box

If the Reboot Host Immediately check box is checked, the server is rebooted immediately and the new BIOS settings go into effect. Otherwise the changes are saved until the server is manually rebooted.

Above 4G Decoding toggle button

Enables or disables MMIO above 4GB or not. This can be one of the following:

• Disabled—The server does not map I/O of 64-bit PCI devices to 4GB or greater address space.

• Enabled—The server maps I/O of 64-bit PCI devices to 4GB or greater address space.

NUMA Nodes per Socket drop-down list

Allows you to configure the memory NUMA domains per socket. This can be one of the following:

• Auto—Number of channels is set to auto.

• NPS0—One NUMA node per system.

• NPS1—One NUMA node per socket.

• NPS2—Two NUMA nodes per socket, one per Left/Right Half of the SoC.

• NPS4—Four NUMA nodes per socket, one per Quadrant.

Chipselect Interleaving drop-down list

Whether memory blocks across the DRAM chip selects for node 0 are interleaved. This can be one of the following:

• Disabled—Chip selects are not interleaved within the memory controller.

• Auto—The CPU automatically determines how to interleave chip selects.

Bank Group Swap

Determines how physical addresses are assigned to applications. This can be one of the following:

• Auto—The CPU automatically determines how to assign physical addresses to applications.

• Disabled—Bank group swap is not used.

• Enabled—Bank group swap is used to improve the performance of applications.

IOMMU drop-down list

Input Output Memory Management Unit (IOMMU) allows AMD processors to map virtual addresses to physical addresses. This can be one of the following:

• Auto—The CPU determines how map these addresses.

• Disabled—IOMMU is not used.

• Enabled—Address mapping takes place through the IOMMU.

SMEE drop-down list

Whether the processor uses the Secure Memory Encryption Enable (SMEE) function, which provides memory encryption support. This can be one of the following:

• Auto—The CPU determines how map these addresses.

• Disabled—The processor does not use the SMEE function.

• Enabled—The processor uses the SMEE function.

TSME drop-down list

Allows you to enable Transparent Secure Memory Encryption (TSME). This can be one of the following:

• Auto—Feature usage is set to auto.

• Disabled—The processor does not use the TSME function.

• Enabled—The processor uses the TSME function.

SEV-SNP Support drop-down list

Allows you to enable Secure Nested Paging feature. This can be one of the following:

• Disabled—The processor does not use the SEV-SNP function.

• Enabled—The processor uses the SEV-SNP function.

SNP Memory Coverage drop-down list

Allows you to configure SNP memory coverage. This can be one of the following:

• Auto—System decides the memory coverage.

• Disabled—The processor does not use this function.

• Enabled—This feature is enabled.

• Custom—Custom size can be defined in SNP Memory Size to Cover.

SNP Memory Size to Cover in MB (0 - 1048576 MB) field

Allows you to configure SNP memory size.

Enter the value in the range (0 - 1048576 MB).

BME DMA Mitigation toggle button

Allows you to disable the PCI BME bit to mitigate the threat from an unauthorized external DMA. This can be one of the following:

• Disabled—PCI BME bit is disabled in the BIOS.

• Enabled—PCI BME bit is enabled in the BIOS.

Post Package Repair field

Cisco IMC supports Hard-PPR, which permanently remaps accesses from a designated faulty row to a designated spare row. This can be one of the following:

• Hard PPR—Support is enabled.

• Disabled—Support is disabled.

Runtime Post Package Repairtoggle button

This is a specific configuration setting related to the system's ability to perform repairs on the processor's package during runtime.

• Disabled—The processor does not use the function.

• Enabled—The processor uses the function.

Burst and Postponed Refresh toggle button

This option relates to memory refresh operations and affect the way the system handles memory refresh cycles, which are necessary to maintain data integrity in DRAM (Dynamic Random Access Memory).

• Disabled—The processor does not use the function.

• Enabled—The processor uses the function.

DRAM Scrub Time field

Select a value to indicate the number of hours to scrub the entire memory. This can be one of the following:

• Auto — Feature is set to auto mode.

• Disabled — Support is disabled.

• 1 hour

• 4 hours

• 8 hours

• 16 hours

• 24 hours

• 48 hours

SEV-ES ASID Space Limit

The SEV-ES ASID Space Limit BIOS setting determines the number of ASIDs for AMD® SEV-ES, affecting VM memory encryption and isolation. Adjusting it balances security needs with system resources.

Enter an integer between 1 and 1007.

Memory Interleaving field

Allows for disabling memory interleaving. Note that NUMA nodes per socket will be honored regardless of this setting. This can be one of the following:

• Auto—Feature is set to auto mode.

• Disabled—Support is disabled.

Memory Refresh Rate field

Controls the refresh rate of the memory controller and might affect the memory performance and power depending on memory configuration and workload. This can be one of the following:

• 1x Refresh

• 2x Refresh

Enhanced Memory Test drop-down list

This feature is applicable only to Samsung, Hynix and Micron DIMMs.

You can enable advance DIMM testing during BIOS POST using this feature. This can be one of the following:

• Auto—Feature is set to auto mode.

• Disabled—Support is disabled.

• Enabled—Support is disabled.

Core Performance Boost drop-down list

Whether the AMD processor increases its frequency on some cores when it is idle or not being used much. This can be one of the following:

• Auto—The CPU automatically determines how to boost performance.

• Disabled—Core performance boost is disabled.

Global C-state Control drop-down list

Whether the AMD processors control IO-based C-state generation and DF C-states This can be one of the following:

• Auto—The CPU automatically determines how to control IO-based C-state generation.

• Disabled—Global C-state control is disabled.

• Enabled—Global C-state control is enabled.

L1 Stream HW Prefetcher drop-down list

Whether the processor allows the AMD hardware prefetcher to speculatively fetch streams of data and instruction from memory into the L1 cache when necessary. This can be one of the following:

• Auto—The CPU determines how to place data from I/O devices into the processor cache.

• Disabled—The hardware prefetcher is not used.

• Enabled—The processor uses the hardware prefetcher when cache issues are detected.

L2 Stream HW Prefetcher drop-down list

Whether the processor allows the AMD hardware prefetcher to speculatively fetch streams of data and instruction from memory into the L2 cache when necessary. This can be one of the following:

• Auto—The CPU determines how to place data from I/O devices into the processor cache.

• Disabled—The hardware prefetcher is not used.

• Enabled—The processor uses the hardware prefetcher when cache issues are detected.

Determinism Slider drop-down list

Allows AMD processors to determine how to operate. This can be one of the following:

• Auto—The CPU automatically uses default power determinism settings.

• Performance—Processor operates at the best performance in a consistent manner.

• Power—Processor operates at the maximum allowable performance on a per die basis.

CPPC drop-down list

Allows you to configure Collaborative Processor Performance Control.

This can be one of the following:

• Auto—The CPU automatically uses default CPPC settings.

• Disabled—Feature is disabled.

• Enabled—Collaborative Processor Performance is enabled.

Power Profile Selection F19h drop-down list

Power Profile Selection F19h BIOS setting allows you to choose a predefined power management profile tailored for specific performance or energy efficiency goals on AMD® Family 19h processors.

This setting optimizes the CPU power consumption and performance characteristics based on the selected profile.

This can be one of the following:

• High Performance Mode—High Performance mode is enabled.

• Efficiency Mode—Efficiency mode is enabled.

• Maximum IO Performance Mode—Maximum IO Performance mode is enabled.

• Balanced Memory Performance Mode—Balanced Memory Performance mode is enabled.

SVM Mode drop-down list

Whether the processor uses AMD Secure Virtual Machine Technology. This can be one of the following: This can be one of the following:

• Disabled—The processor does not use SVM Technology.

• Enabled—The processor uses SVM Technology.

SMT Mode drop-down list

Whether the processor uses AMD Simultaneous MultiThreading Technology, which allows multithreaded software applications to execute threads in parallel within each processor. This can be one of the following:

• Auto—The processor allows for the parallel execution of multiple threads.

• Disabled—The processor does not use SMT Mode.

• Enabled—The processor uses SMT Mode.

Downcore control F19 MA0h-AFh drop-down list

Allows the AMD processors to disable cores and, thus, select how many cores to enable. This can be one of the following:

• Auto—The CPU determines how many cores need to be enabled.

• TWO (1+1)—Two cores enabled on one CPU complex.

• FOUR (2+2)—Four cores enabled on one CPU complex.

• SIX (3+3)—Six cores enabled on one CPU complex.

• EIGHT (4+4)—Eight cores enabled on one CPU complex.

• TEN (5+5)—Ten cores enabled on one CPU complex.

• TWELVE (6+6)—Twelve cores enabled on one CPU complex.

• FOURTEEN (7+7)—Fourteen cores enabled on one CPU complex.

CPU Downcore control F19 M10h-1Fh drop-down list

The ability to remove one or more cores from operation is supported in the silicon. It may be desirable to reduce the number of cores due to OS restrictions, or power reduction requirements of the system. This item allows the control of how many cores are running. This setting can only reduce the number of cores from those available in the processor. This can be one of the following:

• Auto—The CPU determines how many cores need to be enabled.

• One (1+0)—One cores enabled on one CPU complex.

• TWO (2+0)—Two cores enabled on one CPU complex.

• THREE (3+0)—Three cores enabled on one CPU complex.

• FOUR (4+0)—Four cores enabled on one CPU complex.

• Five (5+0)—Five cores enabled on one CPU complex.

• SIX (6+0)—Six cores enabled on one CPU complex.

• SEVEN (7+0)—Seven cores enabled on one CPU complex.

Fixed SOC P-State SP5 F19h drop-down list

This option defines the target PState when APBDIS is set. Px – Specify a valid PState for the processor installed. This can be one of the following:

• P0

• P1

• P2

• P3

• Auto

APBDIS drop-down list

Allows you to select the APB Disable value for the SMU. This can be one of the following:

• 0—Clear ApbDis to SMU

• 1—Set ApbDis to SMU.

• Auto—The CPU determines the value.

CCD Control drop-down list

Allows you to specify the number of CCDs that are desired to be enable in the system. This can be one of the following:

• Auto—The maximum CCDs provided by the processor is enabled.

• 2 CCDs

• 3 CCDs

• 4 CCDs

• 6 CCDs

ACPI SRAT L3 Cache As NUMA Domain drop-down list

Creates a layer of virtual domains on top of the physical domains in which each CCX is declared to be in its on domain. This can be one of the following:

• Auto—Set to auto mode.

• Disabled—Use NPS settings for domain configuration.

• Enabled— Each CCX is declared to be in its own domain.

Streaming Stores Control drop-down list

Enables the streaming stores functionality. This can be one of the following:

• Auto—Set to auto mode.

• Disabled—Feature is disabled.

• Enabled—Feature is enabled.

Local APIC Mode drop-down list

This control selects the APIC mode to be used.

• Auto—Set to auto mode.

• Compatibility—Set to Compatibility mode.

• XAPIC—Set to XAPIC mode.

• X2APIC—Set to X2APIC mode.

DF C-States drop-down list

When long duration idleness is expected in a system, this control allows the system to transition into a DF Cstate which can set the system into an even lower power state. This can be one of the following:

• Auto—Set to auto mode.

• Disabled—Long periods of idleness are not expected so no power savings would be achieved.

• Enabled— This option is active, saving power when the system is very idle.

4-link xGMI max speed

The option enables xGMI link speed.

This can be one of the following:

• Auto—Set to auto mode.

• 20Gbps—Set to 20Gbps.

• 25Gbps—Set to 25Gbps.

• 32Gbps—Set to 32Gbps.

AVX512

AVX512 BIOS setting enables or disables the use of AVX512 instruction set extensions, which are advanced vector extensions used by certain Intel® processors to improve performance for heavy computational tasks.

Adjusting this setting can affect compatibility and stability with some software, as well as influence CPU power consumption and heat output.

Enable or disable AVX512. This can be one of the following:

• Auto—Set to auto mode.

• Disabled—Feature is disabled.

• Enabled—Feature is enabled.

DF PState Frequency Optimizer

Enable or disable DF PState Frequency Optimizer. This can be one of the following:

• Auto—Set to auto mode.

• Disabled—Feature is disabled.

• Enabled—Feature is enabled.

xGMI Force Link Width

This setting allows you to manually specify the number of lanes used for the xGMI (Inter-chip Global Memory Interconnect) link, which can impact the bandwidth and performance of the data transfer between CPUs. Adjusting this setting can be used for troubleshooting, performance tuning, or to ensure compatibility with certain workloads or system configurations.

This can be one of the following:

• Auto—Set to auto mode.

• 0—Set to 0.

• 1—Set to 1.

• 2—Set to 2.

Power Down Enable

This setting controls whether the memory (RAM) can enter a low power state when the system is idle or during periods of low usage.

Enabling this setting typically allows the RAM to consume less power, potentially saving energy and reducing heat output, while disabling it keeps the RAM fully powered for possibly quicker wake-up times at the expense of higher power consumption. This can be one of the following:

This can be one of the following:

• Auto—Set to auto mode.

• Disabled—Feature is disabled.

• Enabled—Feature is enabled.

Security Device Support

This option allows you to control the Security Device support for the system. This can be one of the following:

• Disabled—The option is disabled.

• Enabled—The server is disabled.

Trusted Platform Module State drop-down list

Trusted Platform Module (TPM) is a microchip designed to provide basic security-related functions primarily involving encryption keys. This option allows you to control the TPM Security Device support for the system. This can be one of the following:

• Disabled—The server does not use the TPM.

• Enabled—The server uses the TPM.

SHA-1 PCR Bank drop-down list

Enable or Disable SHA-1 PCR Bank. This can be one of the following:

• Disabled—The server does not use this feature.

• Enabled—The server uses this feature.

SHA256 PCR Bank drop-down list

Enable or Disable SHA256 PCR Bank. This can be one of the following:

• Disabled—The server does not use this feature.

• Enabled—The server uses this feature.

SHA384 PCR Bank drop-down list

The Platform Configuration Register (PCR) is a memory location in the TPM. Multiple PCRs are collectively referred to as a PCR bank. A Secure Hash Algorithm 384-bit or SHA-384PCR Bank allows to enable or disable TPM security.

This can be one of the following:

• Disabled—The server does not use this feature.

• Enabled—The server uses this feature.

Power ON Password drop-down list

This token requires that you set a BIOS password before using the F2 BIOS configuration. If enabled, password needs to be validated before you access BIOS functions such as IO configuration, BIOS set up, and booting to an operating system using BIOS. This can be one of the following:

• Disabled—Support is disabled.

• Enabled—Support is enabled.

OS Watchdog Timer Policy drop-down list

What action the system takes if the watchdog timer expires. This can be one of the following:

• Power Off—The server is powered off if the watchdog timer expires during OS boot.

• Reset—The server is reset if the watchdog timer expires during OS boot.

FRB 2 Timer drop-down list

Whether the FRB2 timer is used by Cisco IMC to recover the system if it hangs during POST. This can be one of the following:

• Disabled—The FRB2 timer is not used.

• Enabled—The FRB2 timer is started during POST and used to recover the system if necessary.

OS Watchdog Timer drop-down list

Whether the BIOS programs the watchdog timer with a specified timeout value. This can be one of the following:

• Disabled—The watchdog timer is not used to track how long the server takes to boot.

• Enabled—The watchdog timer tracks how long the server takes to boot. If the server does not boot within the length of time specified in the OS Boot Watchdog Timer Timeout field, the Cisco IMC logs an error and takes the action specified in the OS Boot Watchdog Policy field.

OS Watchdog Timer Timeout drop-down list

If OS does not boot within the specified time, OS watchdog timer expires and system takes action according to timer policy. This can be one of the following:

• 5 Minutes—The OS watchdog timer expires 5 minutes after it begins to boot.

• 10 Minutes—The OS watchdog timer expires 10 minutes after it begins to boot.

• 15 Minutes—The OS watchdog timer expires 15 minutes after it begins to boot.

• 20 Minutes—The OS watchdog timer expires 20 minutes after it begins to boot.

Baud Rate drop-down list

What Baud rate is used for the serial port transmission speed. If you disable Console Redirection, this option is not available. This can be one of the following:

• 9.6k—A 9,600 Baud rate is used.

• 19.2k—A 19,200 Baud rate is used.

• 38.4k—A 38,400 Baud rate is used.

• 57.6k—A 57,600 Baud rate is used.

• 115.2k—A 115,200 Baud rate is used.

This setting must match the setting on the remote terminal application.

Flow Control drop-down list

Whether a handshake protocol is used for flow control. Request to Send / Clear to Send (RTS/CTS) helps to reduce frame collisions that can be introduced by a hidden terminal problem. This can be one of the following:

• None—No flow control is used.

• RTS/CTS—RTS/CTS is used for flow control.

Console Redirection drop-down list

Allows a serial port to be used for console redirection during POST and BIOS booting. After the OS has booted, console redirection is irrelevant. This can be one of the following:

• COM 0—Enables console redirection on COM 1 during POST.

• COM 1—Enables console redirection on COM 1 during POST.

• Disabled—No console redirection occurs during POST.

Terminal type drop-down list

What type of character formatting is used for console redirection. This can be one of the following:

• PC-ANSI—The PC-ANSI terminal font is used.

• VT100—A supported VT100 video terminal and its character set are used.

• VT100-PLUS—A supported VT100-plus video terminal and its character set are used.

• VT-UTF8—A video terminal with the UTF-8 character set is used.

PCIe Slots CDN Control drop-down list

Whether the Ethernet Network naming convention is according to Consistent Device Naming (CDN) or the traditional way of naming conventions. This can be one of the following:

• Disabled— CDN support for VIC cards is disabled

• Enabled— CDN support is enabled for VIC cards.

CDN Control drop-down list

Whether the Ethernet Network naming convention is according to Consistent Device Naming (CDN) or the traditional way of naming conventions. This can be one of the following:

• Disabled— CDN support for VIC cards is disabled

• Enabled— CDN support is enabled for VIC cards.

BIOS Techlog Level

This option denotes the type of messages in BIOS tech log file.

• Minimum - Critical messages will be displayed in the log file.

• Normal - Warning and loading messages will be displayed in the log file.

• Maximum - Normal and information related messages will be displayed in the log file.

Default value: Minimum.

MLOM OptionROM toggle button

This options allows you to control the Option ROM execution of the PCIe adapter connected to the MLOM slot. This can be one of the following:

• Disabled—Does not execute Option ROM of the PCIe adapter connected to the MLOM slot.

• Enabled—Executes Option ROM of the PCIe adapter connected to the MLOM slot.

MLOM Link Speed drop-down list

This option allows you to restrict the maximum speed of an adapter card installed in PCIe MLOM slot. This can be one of the following:

• Disabled—The maximum speed is not restricted.

• Auto—System selects the maximum speed allowed.

• GEN1—2.5GT/s (gigatransfers per second) is the maximum speed allowed.

• GEN2—5GT/s is the maximum speed allowed.

• GEN3—8GT/s is the maximum speed allowed.

• GEN4—16GT/s is the maximum speed allowed.

• GEN5—32GT/s is the maximum speed allowed.

PCIe Slotn OptionROM toggle button

Whether the server can use the Option ROMs present in the PCIe card slot designated by n. This can be one of the following:

• Disabled—Option ROM for slot n is not available.

• Enabled—Option ROM for slot n is available.

PCIe Slotn Link Speed drop-down list

System IO Controller n (SIOCn) add-on slot (designated by n) link speed. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto— The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

• GEN5—Link speed can reach up to fifth generation.

MRAID OptionROM drop-down list

This options allows you to control the Option ROM execution of the MRAID PCIe adapter connected. This can be one of the following:

• Disabled—Does not execute Option ROM of the MRAID PCIe adapter.

• Enabled—Executes Option ROM of the MRAID PCIe adapter.

MRAID Link Speed drop-down list

This option allows you to restrict the maximum speed of an MRAID adapter card installed. This can be one of the following:

• Disabled—The maximum speed is not restricted.

• Auto—System selects the maximum speed allowed.

• GEN1—2.5GT/s (gigatransfers per second) is the maximum speed allowed.

• GEN2—5GT/s is the maximum speed allowed.

• GEN3—8GT/s is the maximum speed allowed.

• GEN4—16GT/s is the maximum speed allowed.

• GEN5—32GT/s is the maximum speed allowed.

Front NVME-n OptionROM toggle button

This options allows you to control the Option ROM execution of the PCIe adapter connected to the SSD:NVMe slot n. This can be one of the following:

• Disabled—Does not execute Option ROM of the PCIe adapter connected to the SSD:NVMe1 slot.

• Enabled—Executes Option ROM of the PCIe adapter connected to the SSD:NVMe1 slot

Front NVME-n Link Speed drop-down list

Link speed for NVMe front slot designated by slot n. This can be one of the following:

• Disabled—Slot is disabled, and the card is not enumerated.

• Auto—The default link speed. Link speed is automatically assigned.

• GEN1—Link speed can reach up to first generation.

• GEN2—Link speed can reach up to second generation.

• GEN3—Link speed can reach up to third generation.

• GEN4—Link speed can reach up to fourth generation.

• GEN5—Link speed can reach up to fifth generation.

Intel VTD Coherency Support drop-down list

Whether the processor supports Intel VT-d Coherency. This can be one of the following:

• Disabled—The processor does not support coherency.

• Enabled—The processor uses VT-d Coherency as required.

Intel VT for Directed IO drop-down list

Whether the processor uses Intel Virtualization Technology (VT), which allows a platform to run multiple operating systems and applications in independent partitions. This can be one of the following:

• Disabled—The processor does not permit virtualization.

• Enabled—The processor allows multiple operating systems in independent partitions.

PCIe RAS Support drop-down list

Whether PCIe RAS Support is available on the PCIe slot. This can be one of the following:

• Disabled—PCIe RAS is not available on the slot.

• Enabled—PCIe RAS is available on port.

USB Port Rear drop-down list

Whether the rear panel USB devices are enabled or disabled. This can be one of the following

• Disabled— Disables the rear panel USB ports. Devices connected to these ports are not detected by the BIOS and operating system.

• Enabled— Enables the rear panel USB ports. Devices connected to these ports are detected by the BIOS and operating system.

VGA Priority drop-down list

Allows you to set the priority for VGA graphics devices if multiple VGA devices are found in the system. This can be one of the following:

• OnBoard—Priority is given to the onboard VGA device. BIOS post screen and OS boot are driven through the onboard VGA port.

• OffBoard—Priority is given to the PCIE Graphics adapter. BIOS post screen and OS boot are driven through the external graphics adapter port.

• OnBoardDisabled—Priority is given to the PCIe Graphics adapter, and the onboard VGA device is disabled. The vKVM does not function when the onboard VGA is disabled.

IPV6 PXE Support drop-down list

Enables or disables IPv6 support for PXE. This can be one of the following

• Disabled—IPv6 PXE support is not available.

• Enabled—IPv6 PXE support is always available.

Network Stack drop-down list

This option allows you to monitor IPv6 and IPv4. This can be one of the following

• Disabled—Network Stack support is not available.

  Note	When disabled, the value set for IPV4 PXE Support does not impact the system.

• Enabled—Network Stack support is always available.

IPV4 PXE Support drop-down list

Enables or disables IPv4 support for PXE. This can be one of the following

• Disabled—IPv4 PXE support is not available.

• Enabled—IPv4 PXE support is always available.

IPV4 HTTP Support drop-down list

Enables or disables IPv4 support for HTTP. This can be one of the following:

• Disabled—IPv4 HTTP support is not available.

• Enabled—IPv4 HTTP support is always available.

IIO eDPC Support drop-down list

eDPC allows a downstream link to be disabled after an uncorrectable error, making recovery possible in a controlled and robust manner.

This can be one of the following:

• Disabled—eDPC support is disabled.

• On Fatal Error—eDPC is enabled only for fatal errors.

• On Fatal and Non-Fatal Errors—eDPC is enabled for both fatal and non-fatal errors.

Re-Size BAR Support drop-down list

Re-Size BAR Support allows the system to dynamically adjust the size of the Base Address Registers (BAR) for PCIe devices to optimize memory allocation and performance. This can be one of the following:

• Disabled—IPv6 HTTP support is not available.

• Enabled—IPv6 HTTP support is always available.

IPV6 HTTP Support drop-down list

Enables or disables IPv6 support for HTTP. This can be one of the following:

• Disabled—IPv6 HTTP support is not available.

• Enabled—IPv6 HTTP support is always available.