Supermicro SUPERSERVER 1018R-WC0R, Руководство пользователя

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Chapter 7: BIOS
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ERVER 1018R-WC0R User's Manual
DCU IP Prefetcher
If this item is set to Enable, the IP prefetcher in the DCU (Data Cache Unit) will
prefetch IP addresses to improve network connectivity and system performance.
The options are
Enable and Disable.
DCU (Data Cache Unit) Mode
Use this item to set the DCU data-prefecting mode. The options are 32KB 8Way
Without ECC and 16KB 4Way With ECC.
Direct Cache Access (DCA)
Select Enable to use Intel DCA (Direct Cache Access) Technology to maximize ef-
ficiency in memory data transferring and accessing. The options are Auto , Enable
and Disable.
DCA Prefetch Delay
A DCA prefetcher is used with a TOE (TCP/IP Offload Engine) adapter to prefetch
data to shorten execution cycles and to maximize data processing efficiency.
Prefetching data too frequently can saturate the cache directory and delay neces-
sary cache access. This feature reduces or increases the frequency of system data
prefetching activities. The options are Disable, [8], [16],
[32] , [40], [48], [56], [64],
[72], [80], [88], [96], [104], and [112].
X2APIC (Extended Advanced Programmable Interrupt Controller)
Based on the Intel Hyper-Threading technology, each logical processor (thread) is
assigned 256 APIC IDs (APIDs) in 8-bit bandwidth. When this item is set to En-
able, the APIC ID will be expanded from 8 bits to 16 bits to provide 512 APIDs to
each thread to enhance CPU performance. The options are
Disable and Enable.
AES-NI
Select Enable to use the Intel Advanced Encryption Standard (AES) New Instruc-
tions (NI) to ensure data security. The options are
Enable and Disable.
Intel Virtualization Technology
Select Enable to use Intel Virtualization Technology so that I/O device assignments
will be reported directly to the VMM (Virtual Memory Management) through the
DMAR ACPI Tables. This feature offers fully-protected I/O resource-sharing across
the Intel platforms, providing the user with greater reliability, security and availability
in networking and data-sharing. The settings are
Enable and Disable.

Advanced Power Management Configuration
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 Disable,
Energy Efficient , and Custom.
Config TDP
Select Enable to allow the user to configure the Thermal Design Power (TDP)
settings for the system. The TDP refers to the maximum amount of power allowed
for running "real applications" without triggering an overheating event. The options
are
Disable and Enable.

CPU P State Control
EIST (P-State)
EIST (Enhanced Intel SpeedStep Technology) allows the system to automati-
cally adjust processor voltage and core frequency in an effort to reduce power
consumption and heat dissipation. Please refer to Intel’s website for detailed
information. The options are Disable and
Enable .
Turbo Mode
Select Enable for processor cores to run faster than the frequency specified by
the manufacturer. The options are Disable and Enable .
P-state Coordination
Use this item to configure the processor's P-State coordination settings. During
a P-State, the voltage and frequency of the processor will be reduced when it is
in operation. This makes the processor more energy efficient, resulting in further
energy gains. The options are
HW_ALL
, SW_ALL and SW-ANY.

CPU C State Control
Package C State limit
Use this item to set the limit on the C-State package register. The options are
C0/1 state, C2 state, C6 (non-Retention) state, and
C6 (Retention) state .
CPU C3 Report
Select Enable to allow the BIOS to report the CPU C3 State (ACPI C2) to the
operating system. During the CPU C3 State, the CPU clock generator is turned
off. The options are Enable and
Disable .