Cpu Power Management Configuration - Supermicro X9DRW-CF31 User Manual

DCU Streamer Prefetcher (Available when supported by the CPU)
Select Enabled to support Data Cache Unite (DCU) prefetch to speed up data
accessing and processing in the DCU to enhance CPU performance. The options
are Disabled and Enabled.
DCU IP Prefetcher
Select Enabled for DCU (Data Cache Unit) IP Prefetcher support, which will prefetch
IP addresses to improve network connectivity and system performance. The options
are Enabled and Disabled.
Intel® Virtualization Technology (Available when supported by the CPU)
Select Enabled to support Intel's Virtualization Technology, which will allow one
platform to run multiple operating systems and applications in independent parti-
tions, creating multiple "virtual" systems in one physical computer. The options
are Enabled and Disabled.
Note: If there is any change to this setting, you will need to power off and
restart the system for the changes to take effect. Please refer to Intel's
website for detailed information.)
PPIN (Protected Processor Inventory Number) Support (Available when
supported by the CPU)
If this item is set to Enabled, the processor will return a 64-bit ID number via the
PPIN MSR. The options are Enabled and Disabled.
 CPU Power Management Configuration
This submenu allows the user to configure the following CPU Power Management
settings.
Power Technology
Select Energy Efficient to support power-saving mode. Select Custom to custom-
ize system power settings. Select Disabled to disable power-saving settings. The
options are Disabled, Energy Efficient, Custom, and MAX Performance. If the
option is set to Custom, the following items will display:
EIST (Available when Power Technology is set to Custom)
EIST (Enhanced Intel SpeedStep Technology) allows the system to au-
tomatically adjust processor voltage and core frequency to reduce power
consumption and heat dissipation. The options are Disabled (GV3 Disabled),
and Enabled (GV3 Enabled). (Note: GV3 is Intel Speedstep support used
on older platforms. Please refer to Intel's website for detailed information.)
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Chapter 4: AMI BIOS