Intel Turbo Boost Technology set IntelTurboBoostTech |
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:
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Disabled—The processor does not increase its frequency automatically.
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Enabled—The processor utilizes Turbo Boost Technology if required.
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Enhanced Intel Speedstep Technology set EnhancedIntelSpeedStep |
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:
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Disabled—The processor never dynamically adjusts its voltage or frequency.
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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 Hyper-Threading Technology set IntelHyperThread |
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:
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Disabled—The processor does not permit hyperthreading.
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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 set CoreMultiProcessing |
Sets the state of logical processor cores in a package. If you disable this setting, Hyper Threading is also disabled. This can be one of the following:
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All—Enables multi processing on all logical processor cores.
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1 through n—Specifies the number of logical processor cores that can run on the server. To disable multi processing and have only one logical processor core running on the server, select 1.
We recommend that you contact your operating system vendor to make sure the operating system supports this feature. |
Execute Disable set ExecuteDisable |
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:
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Disabled—The processor does not classify memory areas.
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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 Virtualization Technology set IntelVT |
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:
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Disabled—The processor does not permit virtualization.
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Enabled—The processor allows multiple operating systems in independent partitions.
Note |
If you change this option, you must power cycle the server before the setting takes effect. |
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Intel VT for Directed IO set IntelVTD |
Whether the processor uses Intel Virtualization Technology for Directed I/O (VT-d). This can be one of the following:
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Disabled—The processor does not use virtualization technology.
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Enabled—The processor uses virtualization technology.
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Intel VT-d Interrupt Remapping set InterruptRemap |
Whether the processor supports Intel VT-d Interrupt Remapping. This can be one of the following:
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Disabled—The processor does not support remapping.
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Enabled—The processor uses VT-d Interrupt Remapping as required.
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Intel VT-d Coherency Support set CoherencySupport |
Whether the processor supports Intel VT-d Coherency. This can be one of the following:
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Disabled—The processor does not support coherency.
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Enabled—The processor uses VT-d Coherency as required.
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Intel VT-d Address Translation Services set ATS |
Whether the processor supports Intel VT-d Address Translation Services (ATS). This can be one of the following:
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Disabled—The processor does not support ATS.
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Enabled—The processor uses VT-d ATS as required.
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Intel VT-d PassThrough DMA set PassThroughDMA |
Whether the processor supports Intel VT-d Pass-through DMA. This can be one of the following:
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Disabled—The processor does not support pass-through DMA.
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Enabled—The processor uses VT-d Pass-through DMA as required.
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Direct Cache Access set DirectCacheAccess |
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:
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Disabled—Data from I/O devices is not placed directly into the processor cache.
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Enabled—Data from I/O devices is placed directly into the processor cache.
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Processor C3 Report set ProcessorC3Report |
Whether the processor sends the C3 report to the operating system. This can be one of the following:
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Disabled—The processor does not send the C3 report.
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ACPI_C2—The processor sends the C3 report using the ACPI C2 format.
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ACPI_C3—The processor sends the C3 report using the ACPI C3 format.
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Processor C6 Report set ProcessorC6Report |
Whether the processor sends the C6 report to the operating system. This can be one of the following:
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Disabled—The processor does not send the C6 report.
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Enabled—The processor sends the C6 report.
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Hardware Prefetcher set HardwarePrefetch |
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:
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Disabled—The hardware prefetcher is not used.
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Enabled—The processor uses the hardware prefetcher when cache issues are detected.
Note |
You must select Custom in the CPU Performance setting to specify this value. For any value other than Custom, this option is overridden by the setting in the selected CPU performance profile. |
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Package C State Limit set PackageCstateLimit |
The amount of power available to the server components when they are idle. This can be one of the following:
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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.
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C2_state— System level coordination is in progress resulting in high power consumption. There might be performance issues until the coordination is complete.
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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 or C2, but there might be performance issues until the server returns to full power.
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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.
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No_Limit—The server may enter any available C state.
Note |
This option is used only if CPU C State is enabled. |
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Patrol Scrub set PatrolScrub |
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:
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Disabled—The system checks for memory ECC errors only when the CPU reads or writes a memory address.
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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.
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Demand Scrub set DemandScrub |
Whether the system allows you to perform a memory scrub on demand. This can be one of the following:
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Disabled—The system does not allow you to perform a memory scrub on demand.
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Enabled—The system allows you to perform a memory scrub on demand. If errors are found, the system attempts to fix them or marks the location as unreadable. This process allows the system to run faster and with fewer data processing errors.
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Device Tagging set DeviceTagging |
Whether the system allows you to group devices and interfaces based on a variety of information, including descriptions, addresses, and names. This can be one of the following:
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Disabled—The system does not allow you to group devices and interfaces.
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Enabled—The system allows you to group devices and interfaces based on a variety of information, including descriptions, addresses, and names.
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