Chapter 4: BIOS
SuperServer 5019P-MT/MTR User's Manual
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Advanced Power Management Configuration
CPU P State Control
This feature allows the user to configure the following CPU power settings:
SpeedStep (Pstates)
Intel SpeedStep Technology allows the system to automatically adjust processor voltage
and core frequency to reduce power consumption and heat dissipation. The options are
Disable and
Enable
.
EIST PSD Funtion
This feature allows the user to choose between Hardware and Software to control the
processor's frequency and performance (P-state). In HW_ALL mode, the processor hard-
ware is responsible for coordinating the P-state, and the OS is responsible for keeping the
P-state request up to date on all Logical Processors. In SW_ALL mode, the OS Power
Manager is responsible for coordinating the P-state, and must initiate the transition on
all Logical Processors. In SW_ANY mode, the OS Power Manager is responsible for
coordinating the P-state and may initiate the transition on any Logical Processors. The
options are
HW_ALL
, SW_ALL, and SW_ANY.
Turbo Mode
This feature will enable dynamic control of the processor, allowing it to run above stock
frequency. The options are Disable and
Enable
.
Hardware PM State Control
Hardware P-States
This setting allows the user to select between OS and hardware-controlled P-states.
Selecting Native Mode allows the OS to choose a P-state. Selecting Out of Band Mode
allows the hardware to autonomously choose a P-state without OS guidance. Selecting
Native Mode with No Legacy Support functions as Native Mode with no support for older
hardware. The options are
Disable
, Native Mode, Out of Band Mode, and Native Mode
with No Legacy Support.
Intel Virtualization Technology
Use feature to enable the Vanderpool Technology. This technology allows the system to run
several operating systems simultaneously. The options are Disable and
Enable
.
PPIN Control
Select Unlock/Enable to use the Protected-Processor Inventory Number (PPIN) in the system.
The options are Unlock/Disable and
Unlock/Enable
Hardware Prefetcher (Available when supported by the CPU)
If set to Enabled, the hardware prefetcher will prefetch streams of data and instructions from
the main memory to the L2 cache to improve CPU performance. The options are Disable
and
Enable
.
Adjacent Cache Prefetch (Available when supported by the CPU)
The CPU prefetches the cache line for 64 bytes if this feature is set to Disabled. The CPU
prefetches both cache lines for 128 bytes as comprised if this feature is set to Enable. The
options are
Enable
and Disable.
DCU Streamer Prefetcher (Available when supported by the CPU)
Select Enabled to enable the DCU (Data Cache Unit) Streamer Prefetcher which will stream
and prefetch data and send it to the Level 1 data cache to improve data processing and
system performance. The options are Disable and
Enable
.
DCU IP Prefetcher (Available when supported by the CPU)
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
Enable
and Disable.
LLC Prefetch
If set to Enable, the hardware prefetcher will prefetch streams of data and instructions from
the main memory to the L3 cache to improve CPU performance. The options are
Disable
and Enable.
Extended APIC
Select Enable to activate APIC (Advanced Programmable Interrupt Controller) support. The
options are
Disable
and Enable.
AES-NI
Select Enable to use the Intel Advanced Encryption Standard (AES) New Instructions (NI) to
ensure data security. The options are Disable and
Enable
.
