Reboot Host Immediately checkbox

Upon checking, reboots the host server immediately. You must check the checkbox after saving changes.

Pcie Slotn Oprom 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.

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.

SR-IOV Support drop-down list

Whether SR-IOV (Single Root I/O Virtualization) is enabled or disabled on the server. This can be one of the following:

• Disabled—SR-IOV is disabled.

• Enabled—SR-IOV is enabled.

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 n slot. This can be one of the following:

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

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

Front NVME n Link Speed drop-down list

Link speed for NVMe front 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.

PCIe Slot MSTOR RAID OptionROM drop-down list

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.

PCIe ARI Support drop-down list

Beginning with release 4.1(2a), Cisco IMC supports PCIe Alternative Routing ID (ARI) Interpretation feature. The PCIe specification supports greater numbers of virtual funtions through the implementation of ARI, which reinterprets the device number field in the PCIe header allowing for more than eight functions. This can be one of the following:

• Disabled—PCIe ARI Support is not available.

• Enabled—PCIe ARI Support is available.

• Auto—PCIe ARI Support is in auto mode.

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.

Reboot Host Immediately checkbox

Upon checking, reboots the host server immediately. You must check the checkbox after saving changes.

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.

• Platform Default —The BIOS uses the value for this attribute contained in the BIOS defaults for the server type and vendor.

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.

• Platform Default —The BIOS uses the value for this attribute contained in the BIOS defaults for the server type and vendor.

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.

• Platform Default —The BIOS uses the value for this attribute contained in the BIOS defaults for the server type and vendor.

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.

• Platform Default —The BIOS uses the value for this attribute contained in the BIOS defaults for the server type and vendor.

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.

• Platform Default —The BIOS uses the value for this attribute contained in the BIOS defaults for the server type and vendor.

Reboot Host Immediately checkbox

Upon checking, reboots the host server immediately. You must check the checkbox after saving changes.

Legacy USB Support drop-down list

Whether the system supports legacy USB devices. This can be one of the following:

• Disabled—USB devices are only available to EFI applications.

• Enabled—Legacy USB support is always available.

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.

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 VTD ATS support drop-down list

Whether the processor supports Intel VT-d Address Translation Services (ATS). This can be one of the following:

• Disabled—The processor does not support ATS.

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

PCIe RAS Support drop-down list

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

• Enabled— PCIe RAS is available on the slot.

• Disabled— PCIe RAS is not available on port.

All Onboard LOM Ports drop-down list

Whether all LOM ports are enabled or disabled. This can be one of the following:

• Enabled— All LOM ports are enabled.

• Disabled— All LOM ports are disabled.

LOM Port 0 OptionROM drop-down list

Whether Option ROM is available on the LOM port 0. This can be one of the following:

• Disabled—Option ROM is not available on LOM port 0.

• Enabled—Option ROM is available on LOM port 0.

LOM Port 1 OptionROM

Whether Option ROM is available on the LOM port 1. This can be one of the following:

• Disabled—Option ROM is not available on LOM port 1.

• Enabled—Option ROM is available on LOM port 1.

PCIe Slot nOptionROMdrop-down list

Whether the server can use the Option ROMs present in the PCIe Cards.

This can be one of the following:

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

• Enabled—Option ROM is available on slot n.

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.

MLOM Oprom 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.

HBA Oprom drop-down list

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

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

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

Front NVME1 Oprom drop-down list

This options allows you to control the Option ROM execution of the PCIe adapter connected to the SSD:NVMe1 slot. 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 NVME2 Oprom drop-down list

This options allows you to control the Option ROM execution of the PCIe adapter connected to the SSD:NVMe2 slot. This can be one of the following:

• Disabled—Does not execute Option ROM of the PCIe adapter connected to the SSD:NVMe2 slot.

• Enabled—Executes Option ROM of the PCIe adapter connected to the SSD:NVMe2 slot

HBA Link Speed drop-down list

This option allows you to restrict the maximum speed of an adapter card installed in PCIe HBA 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.

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.

MRAID Link Speed drop-down list

This option allows you to restrict the maximum speed of an adapter card installed in MRAID 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.

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.

Front NVME1 Link Speed drop-down list

Link speed for NVMe front slot 1. 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.

Front NVME2 Link Speed drop-down list

Link speed for NVMe front slot 2. 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.

Rear NVME1 Link Speed drop-down list

Link speed for NVMe rear slot 1. 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.

Rear NVME2 Link Speed drop-down list

Link speed for NVMe rear slot 2. 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.

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.

P-SATA OptionROM drop-down list

Allows you to select the PCH SATA optionROM mode. This can be one of the following:

• LSI SW Raid— Sets both SATA and sSATA controllers to raid mode for LSI SW Raid.

• Disabled— Disables both SATA and sSATA controllers.

M2.SATA OptionROM drop-down list

Mode of operation of Serial Advanced Technology Attachment (SATA) Solid State Drives (SSD). This can be one of the following:

• AHCI—

  Sets both SATA and sSATA controllers to AHCI mode.

• LSI SW Raid— Sets both SATA and sSATA controllers to raid mode for LSI SW Raid.

• Disabled— Disables both SATA and sSATA controllers.

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.

USB Port Front drop-down list

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

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

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

USB Port Internal drop-down list

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

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

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

USB Port KVM drop-down list

Whether the vKVM ports are enabled or disabled. This can be one of the following

• Disabled— Disables the vKVM keyboard and/or mouse devices. Keyboard and/or mouse will not work in the KVM window.

• Enabled— Enables the vKVM keyboard and/or mouse devices.

USB Port Internal drop-down list

Whether the USB Port Internal is enabled or disabled. This can be one of the following

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

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

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 HTTP Support

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

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

• Disabled—IPv6 PXE support is not available.

• Enabled—IPv6 PXE support is always available.

PCIe PLL SSC drop-down list

Enable this feature to reduce EMI interference by down spreading clock 0.5%. Disable this feature to centralize the clock without spreading.

This can be one of the following:

• Auto—EMI interference is auto adjusted.

  Disabled—EMI interference is auto adjusted.

• ZeroPointFive—EMI interference is reduced by down spreading the clock 0.5%.

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.

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.

External SSC enable drop-down list

This option allows you to reduce the EMI of your motherboard by modulating the signals it generates so that the spikes are reduced to flatter curves.

This can be one of the following:

• Disabled—Clock Spread Spectrum support is not available.

• Enabled—Clock Spread Spectrum support is always available.

PCIe Slot MSTOR RAID OptionROM drop-down list

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.

Reboot Host Immediately checkbox

Upon checking, reboots the host server immediately. You must check the checkbox after saving changes.

Hardware Prefetcher drop-down list

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.

Adjacent Cache Line Prefetcher drop-down list

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.

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.

DCU IP Prefetcher 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 preload any cache data.

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

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.

Reboot Host Immediately checkbox

Upon checking, reboots the host server immediately. You must check the checkbox after saving changes.

TPM Support

TPM (Trusted Platform Module) 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. It can be one of the following:

• Disabled—The server does not use the TPM.

• Enabled—The server uses the TPM.

Power ON Password Support drop-down

Save button

Saves the settings for the BIOS parameter and closes the dialog 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.

Reset button

Resets the values for the BIOS parameters on all three tabs to the settings that were in effect when this dialog box was first opened.

Restore Defaults button

Sets the BIOS parameters on all three tabs to their default settings.

Intel Hyper-Threading Technology

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.

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

Number of Enabled Cores

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

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

Execute Disable

Classifies memory areas on the server to specify where application code can execute. As a result of this classification, the processor disables code execution if a malicious worm attempts to insert code in the buffer. This setting helps to prevent damage, worm propagation, and certain classes of malicious buffer overflow attacks. This can be one of the following:

• Disabled—The processor does not classify memory areas.

• Enabled—The processor classifies memory areas.

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

Intel VT

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.

Intel VT-d

Whether the processor uses Intel Virtualization Technology for Directed I/O (VT-d). This can be one of the following:

• Disabled—The processor does not use virtualization technology.

• Enabled—The processor uses virtualization technology.

Intel(R) Interrupt Remapping drop-down list

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

• Disabled—The processor does not support remapping.

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

Intel(R) Passthrough DMA drop-down list

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

• Disabled—The processor does not support pass-through DMA.

• Enabled—The processor uses VT-d Pass-through DMA as required.

Intel VT-d Coherency Support

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-d ATS Support

Whether the processor supports Intel VT-d Address Translation Services (ATS). This can be one of the following:

• Disabled—The processor does not support ATS.

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

CPU Performance

Sets the CPU performance profile for the server. The performance profile consists of the following options:

• DCU Streamer Prefetcher

• DCU IP Prefetcher

• Hardware Prefetcher

• Adjacent Cache-Line Prefetch

This can be one of the following:

• Enterprise—All options are enabled.

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

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

• 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 in the fields below.

Hardware Prefetcher

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.

Adjacent Cache Line Prefetcher

Whether the processor fetches cache lines in even/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.

DCU Streamer Prefetch

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.

DCU IP Prefetcher

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.

Direct Cache Access Support

Allows processors to increase I/O performance by placing data from I/O devices directly into the processor cache. This setting helps to reduce cache misses. This can be one of the following:

• Disabled—Data from I/O devices is not placed directly into the processor cache.

• Enabled—Data from I/O devices is placed directly into the processor cache.

Power Technology

Enables you to configure the CPU power management settings for the following options:

• Enhanced Intel Speedstep Technology

• Intel Turbo Boost Technology

• Processor Power State C6

Power Technology can be one of the following:

• Custom—The server uses the individual settings for the BIOS parameters mentioned above. You must select this option if you want to change any of these BIOS parameters.

• Disabled—The server does not perform any CPU power management and any settings for the BIOS parameters mentioned above are ignored.

• Energy Efficient—The server determines the best settings for the BIOS parameters mentioned above and ignores the individual settings for these parameters.

Enhanced Intel Speedstep Technology

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.

Intel Turbo Boost Technology

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.

Processor C3 Report

Whether the BIOS sends the C3 report to the operating system. When the OS receives the report, it can transition the processor into the lower C3 power state to decrease energy usage while maintaining optimal processor performance. This can be one of the following:

• Disabled—BIOS does not send C3 report.

• Enabled—BIOS sends the C3 report, allowing the OS to transition the processor to the C3 low power state.

Processor C6 Report

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:

• 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 Power State C1 Enhanced

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.

P-STATE Coordination

Allows you to define how BIOS communicates the P-state support model to the operating system. There are 3 models as defined by the Advanced Configuration and Power Interface (ACPI) specification.

• HW_ALL—The processor hardware is responsible for coordinating the P-state among logical processors with dependencies (all logical processors in a package).

• SW_ALL—The OS Power Manager (OSPM) is responsible for coordinating the P-state among logical processors with dependencies (all logical processors in a physical package), and must initiate the transition on all of the logical processors.

• SW_ANY—The OS Power Manager (OSPM) is responsible for coordinating the P-state among logical processors with dependencies (all logical processors in a package), and may initiate the transition on any of the logical processors in the domain.

SINGLE_PCTL drop-down list

Facilitates single PCTL support for better processor power management. This can be one of the following:

• No

• Yes

Config TDP drop-down list

Allows you to configure the Thermal Design Power (TDP) settings for the system. TDP is the maximum amount of power allowed for running applications without triggering an overheating event. This can be one of the following:

• Disabled—Disables the TDP settings. This is the default value.

• Enabled—Enables the TDP settings.

Energy Performance Tuning

Allows you to choose BIOS or Operating System for energy performance bias tuning. This can be one of the following:

• OS— Chooses OS for energy performance tuning.

• BIOS— Chooses BIOS for energy performance tuning.

Energy Performance

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

• Balanced Energy

• Balanced Performance

• Energy Efficient

• Performance

Package C State Limit

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

• C0 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.

• C1 state—When the CPU is idle, the system slightly reduces the power consumption. This option requires less power than C0 and allows the server to return quickly to high performance mode.

• C3 state—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 state—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.

• C7 state—When the CPU is idle, the server makes a minimal amount of power available to the components. This option saves the maximum amount of power but it also requires the longest time for the server to return to high performance mode.

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

Extended APIC

Allows you to enable or disable extended APIC support. This can be one of the following:

• XAPIC—Enables APIC support.

• X2APIC—Enables APIC and also enables Intel VT-d and Interrupt Remapping .

Workload Configuration

Allows you to set a parameter to optimize workload characterization. This can be one of the following:

• Balanced— Chooses balanced option for optimization.

• I/O Sensitive— Chooses I/O sensitive option for optimization.

IIO Error Enable drop-down list

Select Memory RAS

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.

• Mirroring—System reliability is optimized by using half the system memory as backup.

• Lockstep—If the DIMM pairs in the server have an identical type, size, and organization and are populated across the SMI channels, you can enable lockstep mode to minimize memory access latency and provide better performance. This option offers better system performance than Mirroring and better reliability than Maximum Performance but lower reliability than Mirroring and lower system performance than Maximum Performance.

DRAM Clock Throttling

Allows you to tune the system settings between the memory bandwidth and power consumption. This can be one of the following:

• Balanced— DRAM clock throttling is reduced, providing a balance between performance and power.

• Performance—DRAM clock throttling is disabled, providing increased memory bandwidth at the cost of additional power.

• Energy Efficient—DRAM clock throttling is increased to improve energy efficiency.

Low Voltage DDR Mode

Whether the system prioritizes low voltage or high frequency memory operations. This can be one of the following:

• Power Saving Mode—The system prioritizes low voltage memory operations over high frequency memory operations. This mode may lower memory frequency in order to keep the voltage low.

• Performance Mode—The system prioritizes high frequency operations over low voltage operations.

Closed Loop Therm Throt drop-down list

Channel Interleaving

Whether the CPU divides memory blocks and spreads contiguous portions of data across interleaved channels to enable simultaneous read operations. This can be one of the following:

• Auto—The CPU determines what interleaving is done.

• 1 Way—Some channel interleaving is used.

• 2 Way

• 3 Way

• 4 Way—The maximum amount of channel interleaving is used.

Rank Interleaving

Whether the CPU interleaves physical ranks of memory so that one rank can be accessed while another is being refreshed. This can be one of the following:

• Auto—The CPU determines what interleaving is done.

• 1 Way—Some rank interleaving is used.

• 2 Way

• 4 Way

• 8 Way—The maximum amount of rank interleaving is used.

Patrol Scrub

Whether the system actively searches for, and corrects, 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.

• Enabled—The system periodically reads and writes memory searching for ECC errors. If any errors are found, the system attempts to fix them. This option may correct single bit errors before they become multi-bit errors, but it may adversely affect performance when the patrol scrub is running.

Demand Scrub

Whether the system corrects single bit memory errors encountered when the CPU or I/O makes a demand read. This can be one of the following:

• Disabled— Single bit memory errors are not corrected.

• Enabled— Single bit memory errors are corrected in memory and the corrected data is set in response to the demand read.

Altitude

The approximate number of meters above sea level at which the physical server is installed. This can be one of the following:

• Auto—The CPU determines the physical elevation.

• 300 M—The server is approximately 300 meters above sea level.

• 900 M—The server is approximately 900 meters above sea level.

• 1500 M—The server is approximately 1500 meters above sea level.

• 3000 M—The server is approximately 3000 meters above sea level.

Panic and High Watermark drop-down list

When set to low, the memory controller does not postpone refreshes while Memory Refresh Rate is set to 1X Refresh.

This can be one of the following:

• Low—Refresh rate is set to low.

• High —Refresh rate is set to high.

QPI Link Frequency Select

The Intel QuickPath Interconnect (QPI) link frequency, in gigatransfers per second (GT/s). This can be one of the following:

• Auto—The CPU determines the QPI link frequency.

• 6.4 GT/s

• 7.2 GT/s

• 8.0 GT/s

QPI Snoop Mode

The Intel QuickPath Interconnect (QPI) snoop mode. This can be one of the following:

• Disabled—Disables the QPI snoop mode.

• Cluster on Die—Enables Cluster On Die. When enabled LLC is split into two parts with an independent caching agent for each. This helps increase the performance in some workloads. This mode is available only for processors that have 10 or more cores. It is the best mode for highly NUMA optimized workloads.

• Auto—The CPU automatically recognizes this as Early Snoop mode. This is the default value.

Legacy USB Support

Whether the system supports legacy USB devices. This can be one of the following:

• Disabled—USB devices are only available to EFI applications.

• Enabled—Legacy USB support is always available.

• Auto—Disables legacy USB support if no USB devices are connected.

Port 60/64 Emulation

Whether the system supports 60h/64h emulation for complete USB keyboard legacy support. This can be one of the following:

• Disabled—60h/64 emulation is not supported.

• Enabled—60h/64 emulation is supported.

  You should select this option if you are using a non-USB aware operating system on the server.

All USB Devices

Whether all physical and virtual USB devices are enabled or disabled. This can be one of the following:

• Disabled—All USB devices are disabled.

• Enabled—All USB devices are enabled.

USB Port: Rear

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.

USB Port: Internal

Whether the internal USB devices are enabled or disabled. This can be one of the following:

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

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

USB Port: KVM

Whether the vKVM ports are enabled or disabled. This can be one of the following:

• Disabled—Disables the vKVM keyboard and/or mouse devices. Keyboard and/or mouse will not work in the vKVM window.

• Enabled—Enables the vKVM keyboard and/or mouse devices.

USB Port: vMedia

Whether the virtual media devices are enabled or disabled. This can be one of the following:

• Disabled—Disables the vMedia devices.

• Enabled—Enables the vMedia devices.

xHCI Mode

Whether the xHCI controller legacy support is enabled or disabled. This can be one of the following:

• Disabled—Disables the xHCI controller legacy support.

• Enabled—Enables the xHCI controller legacy support.

Memory Mapped I/O Above 4GB

Whether to enable or disable 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.

SR-IOV Support drop-down list

Whether SR-IOV (Single Root I/O Virtualization) is enabled or disabled on the server. This can be one of the following:

• Disabled—SR-IOV is disabled.

• Enabled—SR-IOV is enabled.

Out-of-Band Mgmt Port

Allows you to configure the COM port 0 that can be used for Windows Emergency Management services. ACPI SPCR table is reported based on this setup option. This can be one of the following:

• Disabled—Configures the COM port 0 as a general purpose port for use with the Windows Operating System.

• Enabled—Configures the COM port 0 as a remote management port for Windows Emergency Management services.

Console Redirection

Allows a serial port to be used for console redirection during POST and BIOS booting. After the BIOS has booted and the operating system is responsible for the server, console redirection is irrelevant and has no effect. This can be one of the following:

• Disabled—No console redirection occurs during POST.

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

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

Terminal Type

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+—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.

Bits per second

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:

• 9600—A 9,600 BAUD rate is used.

• 19200—A 19,200 BAUD rate is used.

• 38400—A 38,400 BAUD rate is used.

• 57600—A 57,600 BAUD rate is used.

• 115200—A 115,200 BAUD rate is used.

Flow Control

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.

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

Putty KeyPad

Allows you to change the action of the PuTTY function keys and the top row of the numeric keypad. This can be one of the following:

• VT100—The function keys generate ESC OP through ESC O[.

• LINUX—Mimics the Linux virtual console. Function keys F6 to F12 behave like the default mode, but F1 to F5 generate ESC [[A through ESC [[E.

• XTERMR6—Function keys F5 to F12 behave like the default mode. Function keys F1 to F4 generate ESC OP through ESC OS, which are the sequences produced by the top row of the keypad on Digital terminals.

• SCO—The function keys F1 to F12 generate ESC [M through ESC [X. The function and shift keys generate ESC [Y through ESC [j. The control and function keys generate ESC [k through ESC [v. The shift, control and function keys generate ESC [w through ESC [{.

• ESCN—The default mode. The function keys match the general behavior of Digital terminals. The function keys generate sequences such as ESC [11~ and ESC [12~.

• VT400—The function keys behave like the default mode. The top row of the numeric keypad generates ESC OP through ESC OS.

Redirection After BIOS POST

Whether BIOS console redirection should be active after BIOS POST is complete and control given to the OS bootloader. This can be one of the following:

• Always Enable—BIOS Legacy console redirection is active during the OS boot and run time.

• Bootloader—BIOS Legacy console redirection is disabled before giving control to the OS boot loader.

CDN Support for VIC

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.

  Note	CDN support for VIC cards work with Windows 2012 or the latest OS only.

PCI ROM CLP

PCI ROM Command Line Protocol (CLP) controls the execution of different Option ROMs such as PxE and iSCSI that are present in the card. By default, it is disabled.

• Enabled— Enables you to configure execution of different option ROMs such as PxE and iSCSI for an individual ports separately.

• Disabled—The default option. You cannot choose different option ROMs. A default option ROM is executed during PCI enumeration.

PCH SATA Mode

This options allows you to select the PCH SATA mode. This can be one of the following:

• AHCI—Sets both SATA and sSATA controllers to AHCI mode.

• Disabled—Disables both SATA and sSATA controllers.

• LSI SW Raid— Sets both SATA and sSATA controllers to raid mode for LSI SW Raid

All Onboard LOM Ports

Whether all LOM ports are enabled or disabled. This can be one of the following:

• Disabled—All LOM ports are disabled.

• Enabled—All LOM ports are enabled.

LOM Port n OptionROM

Whether Option ROM is available on the LOM port designated by n. This can be one of the following:

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

• Enabled—The Option ROM for slot n is available.

• UEFI Only—The Option ROM for slot n is available for UEFI only.

• Legacy Only—The Option ROM for slot n is available for legacy only.

All PCIe Slots OptionROM

Whether the server can use Option ROM present in the PCIe Cards. This can be one of the following:

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

• Enabled—The Option ROM for slot n is available.

• UEFI Only—The Option ROM for slot n is available for UEFI only.

• Legacy Only—The Option ROM for slot n is available for legacy only.

PCIe Slot:n OptionROM

Whether the server can use the Option ROMs present in the PCIe Cards. This can be one of the following:

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

• Enabled—The Option ROM for slot n is available.

• UEFI Only—The Option ROM for slot n is available for UEFI only.

• Legacy Only—The Option ROM for slot n is available for legacy only.

PCIe Slot:MLOM OptionROM

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:

• Enabled—Executes both legacy and UEFI Option ROM.

• Disabled—Both legacy and UEFI Option ROM will not be executed.

• UEFI Only—Executes only UEFI Option ROM.

• Legacy Only—Executes only Legacy Option ROM.

PCIe Slot:HBA OptionROM

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

• Enabled—Executes both legacy and UEFI Option ROM.

• Disabled—Both legacy and UEFI Option ROM will not be executed.

• UEFI Only—Executes only UEFI Option ROM.

• Legacy Only—Executes only Legacy Option ROM.

PCIe Slot:N1 OptionROM

This options allows you to control the Option ROM execution of the PCIe adapter connected to the SSD:NVMe1 slot. This can be one of the following:

• Enabled—Executes both legacy and UEFI Option ROM.

• Disabled—Both legacy and UEFI Option ROM will not be executed.

• UEFI Only—Executes only UEFI Option ROM.

• Legacy Only—Executes only Legacy Option ROM.

PCIe Slot:N2 OptionROM

This options allows you to control the Option ROM execution of the PCIe adapter connected to the SSD:NVMe2 slot. This can be one of the following:

• Enabled—Executes both legacy and UEFI Option ROM.

• Disabled—Both legacy and UEFI Option ROM will not be executed.

• UEFI Only—Executes only UEFI Option ROM.

• Legacy Only—Executes only Legacy Option ROM.

PCIe Slot:N2 OptionROM

This options allows you to control the Option ROM execution of the PCIe adapter connected to the SSD:NVMe2 slot. This can be one of the following:

• Enabled—Executes both legacy and UEFI Option ROM.

• Disabled—Both legacy and UEFI Option ROM will not be executed.

• UEFI Only—Executes only UEFI Option ROM.

• Legacy Only—Executes only Legacy Option ROM.

PCIe Slot:HBA Link Speed

PCIe SlotHBALinkSpeed

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

• 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.

• Disabled—The maximum speed is not restricted.

Save Changes button

Saves the settings for the BIOS parameters on all three tabs and closes the dialog 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.

Reset Values button

Restores the values for the BIOS parameters on all three tabs to the settings that were in effect when this dialog box was first opened.

Restore Defaults button

Sets the BIOS parameters on all three tabs to their default settings.

Cancel button

Closes the dialog box without making any changes.

FRB-2 Timer

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

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

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 Policy

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

• Do Nothing—The server takes no action if the watchdog timer expires during OS boot.

• Power Down—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.

Save Changes button

Saves the settings for the BIOS parameters on all three tabs and closes the dialog 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.

Reset Values button

Restores the values for the BIOS parameters on all three tabs to the settings that were in effect when this dialog box was first opened.

Restore Defaults button

Sets the BIOS parameters on all three tabs to their default settings.

Cancel button

Closes the dialog box without making any changes.

Reboot Host Immediately checkbox

Upon checking, reboots the host server immediately. You must check the checkbox after saving changes.

TPM Support

TPM (Trusted Platform Module) 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. It can be one of the following:

• Disabled—The server does not use the TPM.

• Enabled—The server uses the TPM.

Power ON Password Support drop-down

Save button

Saves the settings for the BIOS parameters and closes the dialog 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.

Reset button

Resets the values for the BIOS parameters on all three tabs to the settings that were in effect when this dialog box was first opened.

Restore Defaults button

Sets the BIOS parameters on all three tabs to their default settings.

Intel Hyper-Threading Technology

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.

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

Number of Enabled Cores

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

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

Execute Disable

Classifies memory areas on the server to specify where application code can execute. As a result of this classification, the processor disables code execution if a malicious worm attempts to insert code in the buffer. This setting helps to prevent damage, worm propagation, and certain classes of malicious buffer overflow attacks. This can be one of the following:

• Disabled—The processor does not classify memory areas.

• Enabled—The processor classifies memory areas.

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

Intel VT

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.

Intel VT-d

Whether the processor uses Intel Virtualization Technology for Directed I/O (VT-d). This can be one of the following:

• Disabled—The processor does not use virtualization technology.

• Enabled—The processor uses virtualization technology.

Intel VT-d Interrupt Remapping

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

• Disabled—The processor does not support remapping.

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

Intel VT-d PassThrough DMA

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

• Disabled—The processor does not support pass-through DMA.

• Enabled—The processor uses VT-d Pass-through DMA as required.

Intel VT-d Coherency Support

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-d ATS Support

Whether the processor supports Intel VT-d Address Translation Services (ATS). This can be one of the following:

• Disabled—The processor does not support ATS.

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

CPU Performance

Sets the CPU performance profile for the server. The performance profile consists of the following options:

• DCU Streamer Prefetcher

• DCU IP Prefetcher

• Hardware Prefetcher

• Adjacent Cache-Line Prefetch

This can be one of the following:

• Enterprise—All options are enabled.

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

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

• 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 in the fields below.

Hardware Prefetcher

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.

Adjacent Cache Line Prefetcher

Whether the processor fetches cache lines in even/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.

DCU Streamer Prefetch

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.

DCU IP Prefetcher

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.

Direct Cache Access Support

Allows processors to increase I/O performance by placing data from I/O devices directly into the processor cache. This setting helps to reduce cache misses. This can be one of the following:

• Disabled—Data from I/O devices is not placed directly into the processor cache.

• Enabled—Data from I/O devices is placed directly into the processor cache.

Power Technology

Enables you to configure the CPU power management settings for the following options:

• Enhanced Intel Speedstep Technology

• Intel Turbo Boost Technology

• Processor Power State C6

Power Technology can be one of the following:

• Custom—The server uses the individual settings for the BIOS parameters mentioned above. You must select this option if you want to change any of these BIOS parameters.

• Disabled—The server does not perform any CPU power management and any settings for the BIOS parameters mentioned above are ignored.

• Energy Efficient—The server determines the best settings for the BIOS parameters mentioned above and ignores the individual settings for these parameters.

Enhanced Intel Speedstep Technology

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.

Intel Turbo Boost Technology

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.

Processor C3 Report

Whether the BIOS sends the C3 report to the operating system. When the OS receives the report, it can transition the processor into the lower C3 power state to decrease energy usage while maintaining optimal processor performance. This can be one of the following:

• Disabled—BIOS does not send C3 report.

• Enabled—BIOS sends the C3 report, allowing the OS to transition the processor to the C3 low power state.

Processor C6 Report

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:

• 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 Power State C1 Enhanced

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.

P-STATE Coordination

Allows you to define how BIOS communicates the P-state support model to the operating system. There are 3 models as defined by the Advanced Configuration and Power Interface (ACPI) specification.

• HW_ALL—The processor hardware is responsible for coordinating the P-state among logical processors with dependencies (all logical processors in a package).

• SW_ALL—The OS Power Manager (OSPM) is responsible for coordinating the P-state among logical processors with dependencies (all logical processors in a physical package), and must initiate the transition on all of the logical processors.

• SW_ANY—The OS Power Manager (OSPM) is responsible for coordinating the P-state among logical processors with dependencies (all logical processors in a package), and may initiate the transition on any of the logical processors in the domain.

Boot Performance Mode drop-down list

• Max Performance—Processor P-state ratio is maximum

• Max Efficient— Processor P-state ratio is minimum

Energy Performance Tuning

Allows you to choose BIOS or Operating System for energy performance bias tuning. This can be one of the following:

• OS— Chooses OS for energy performance tuning.

• BIOS— Chooses BIOS for energy performance tuning.

Energy Performance

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

• Balanced Energy

• Balanced Performance

• Energy Efficient

• Performance

Package C State Limit

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

• C0 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.

• C1 state—When the CPU is idle, the system slightly reduces the power consumption. This option requires less power than C0 and allows the server to return quickly to high performance mode.

• C3 state—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 state—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.

• C7 state—When the CPU is idle, the server makes a minimal amount of power available to the components. This option saves the maximum amount of power but it also requires the longest time for the server to return to high performance mode.

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

Extended APIC

Allows you to enable or disable extended APIC support. This can be one of the following:

• XAPIC—Enables APIC support.

• X2APIC—Enables APIC and also enables Intel VT-d and Interrupt Remapping .

Workload Configuration

Allows you to set a parameter to optimize workload characterization. This can be one of the following:

• Balanced— Chooses balanced option for optimization.

• I/O Sensitive— Chooses I/O sensitive option for optimization.

CPU HWPM drop-down list

Enables the Hardware Power Management (HWPM) interface for better CPU performance and energy efficiency. This can be one of the following:

• Disabled—The P-States are controlled the same way as on predecessor processor generations.

• Native Mode—HWPM works with the operating system through a software interface.

• OOB Mode—The CPU autonomously controls its frequency based on the operating system energy efficiency.

CPU Autonomous Cstate drop-down list

Enables CPU Autonomous C-State, which converts the HALT instructions to the MWAIT instructions. This can be one of the following:

• Disabled—CPU Autonomous C-state is disabled. This is the default value.

• Enabled—CPU Autonomous C-state is enabled.

Processor CMCI drop-down list

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.

Select Memory RAS

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.

• Mirroring—System reliability is optimized by using half the system memory as backup.

• Lockstep—If the DIMM pairs in the server have an identical type, size, and organization and are populated across the SMI channels, you can enable lockstep mode to minimize memory access latency and provide better performance. This option offers better system performance than Mirroring and better reliability than Maximum Performance but lower reliability than Mirroring and lower system performance than Maximum Performance.

NUMA

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

• Disabled—The BIOS does not support NUMA.

• Enabled—The BIOS includes the ACPI tables that are required for NUMA-aware operating systems. If you enable this option, the system must disable Inter-Socket Memory interleaving on some platforms.

Channel Interleaving

Whether the CPU divides memory blocks and spreads contiguous portions of data across interleaved channels to enable simultaneous read operations. This can be one of the following:

• Auto—The CPU determines what interleaving is done.

• 1 Way—Some channel interleaving is used.

• 2 Way

• 3 Way

• 4 Way—The maximum amount of channel interleaving is used.

Rank Interleaving

Whether the CPU interleaves physical ranks of memory so that one rank can be accessed while another is being refreshed. This can be one of the following:

• Auto—The CPU determines what interleaving is done.

• 1 Way—Some rank interleaving is used.

• 2 Way

• 4 Way

• 8 Way—The maximum amount of rank interleaving is used.

Patrol Scrub

Whether the system actively searches for, and corrects, 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.

• Enabled—The system periodically reads and writes memory searching for ECC errors. If any errors are found, the system attempts to fix them. This option may correct single bit errors before they become multi-bit errors, but it may adversely affect performance when the patrol scrub is running.

Demand Scrub

Whether the system corrects single bit memory errors encountered when the CPU or I/O makes a demand read. This can be one of the following:

• Disabled— Single bit memory errors are not corrected.

• Enabled— Single bit memory errors are corrected in memory and the corrected data is set in response to the demand read.

Altitude

The approximate number of meters above sea level at which the physical server is installed. This can be one of the following:

• Auto—The CPU determines the physical elevation.

• 300 M—The server is approximately 300 meters above sea level.

• 900 M—The server is approximately 900 meters above sea level.

• 1500 M—The server is approximately 1500 meters above sea level.

• 3000 M—The server is approximately 3000 meters above sea level.

Panic and High Watermark drop-down list

When set to low, the memory controller does not postpone refreshes while Memory Refresh Rate is set to 1X Refresh.

This can be one of the following:

• Low—Refresh rate is set to low.

• High —Refresh rate is set to high.

QPI Link Frequency Select

The Intel QuickPath Interconnect (QPI) link frequency, in gigatransfers per second (GT/s). This can be one of the following:

• Auto—The CPU determines the QPI link frequency.

• 6.4 GT/s

• 7.2 GT/s

• 8.0 GT/s

QPI Snoop Mode