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SBI-7127R-S6 Blade Module User's Manual
Menu Option
Power Button
Function
Restore on AC Power
Loss
Menu Option
Socket 1 CPU
Information
Socket 2 CPU
Information
Clock Spread
Spectrum
Hyper-threading
Active Processor
Cores
Limit CPUID
Maximum
Execute Disable Bit
Hardware Prefetcher
Adjacent Cache Line
Prefetch
DCU Streamer
Prefetcher
DCU IP Prefetcher
Table 5-3. Boot Feature Submenu (Continued)
Description
This setting specifies the power button's function when pressed. Option include 4
Seconds Override or Instant Off.
This setting specifies what the system will do when power is restored after an AC
power loss to the system. Options include Stay Off (system power remains off
after power loss), Power-On (system power turns on after power loss) or Last
State (allows the system to resume its last state before the power loss).
Table 5-4. CPU Configuration Submenu
Description
These submenus, when selected, shows information on the Socket 1/Socket 2
processors and other information including CPU Signature, Microcode Patch,
CPU Stepping, Max CPU Speed, Min CPU Speed, Processor Cores, Intel HT
Technology, Intel VT-x Techn
ology, L1 Data Cache, L1 Code Cache, L2 Cache and L3 Cache.
Additionally, the CPU Configuration submenu shows information about the CPU
Speed and 64-bit support.
This information is only readable and cannot be changed.
This setting enables or disables spread spectrum modulation. Options are
Enabled and Disabled.
This setting is Enabled for Windows XP and Linux (OS optimized for
Hyper-threading technology), and Disabled for other OSes (any OS not
optimized for Hyper-threading techology). When Disabled, only one thread per
enabled core is enabled.
This setting selects the number of cores to enable in each processor package.
Options include All, 1, 2, 4 and 6.
This setting is disabled for Windows XP. Options include Enabled or Disabled.
XD can prevent certain classes of malicious buffer overflow attacks when
combined with a supporting OS such as Windows Server 2003 SP1, Windows
XP SP2, SuSE Linux 9.2 or RedHat Enterprise 3 Update 3. Options include
Enabled or Disabled.
If set to Enabled, the hardware prefetcher will prefetch streams of data and
instructions from the main memory to the L2 cache in the forward or backward
manner to improve CPU performance. Options are Enabled and Disabled.
For UP platforms leave it enabled. for DP/MP servers, this setting may be used
to tune performance to the specific application.
The CPU fetches the cache line for 64-bytes if this option is set to Disabled. The
CPU fetches both cache lines for 128-bytes as comprised if Enabled.
For UP platforms leave it enabled. for DP/MP servers, this setting may be used
to tune performance to the specific application.
For UP platforms, leave this option Enabled. For DP/MP servers, this option
may be used to tune performance to the specific application. Options are
Enabled or Disabled.
This setting Enables or Disables prefetch of the next L1 line based upon
sequential load history.
5-6
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