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Chapter 8 Hardware Configuration/Utilities
■CPU Settings Submenu

Configures the CPUs.

table: Items on the CPU Settings Submenu
Item Setting Description
CPU Mismatch Detection Enabled (Fixed parameter) Sets whether to enable or disable the CPU clock
frequency checking.
Hyper-Threading • Disabled
• Enabled (at the tim e of
purchase)
Sets whether or not to run one CPU as a dual-
processing CPU.
The setting [Enabled] may enhance processing
performance by allowing maximum use of the CPU
resources.
Note:
Some operating systems and applications
do not support the Hyper-Threading
function.
When you change the [Hyper-Threading]
setting from [Disabled] to [Enabled] on a
one-CPU server, you have to change the OS
to the multi-processor kernel. Refer to "9.8
Changing OS Settings" (pg.281). This
change is performed automatically on
Windows Server 2003.
Fast String operations Enabled (Fixed parameter)
Configures the CPU internal setting.
Compatible FPU Code Disabled (Fixed parameter)
Split Lock operations Enabled (Fixed parameter)
Adjacent Sector Prefetch Enabled (Fixed parameter)
CPU Thermal Management Enhanced (Fixed
parameter)
Configures the CPU internal setting.
This item is displayed only when using the optional
3.6GHz CPU.
CPU Halt Mode (C1E) Standard (Fixed parameter) Configures the CPU internal setting.
Enhanced SpeedStep Disabled (Fixed parameter) Configures the CPU internal setting.
This item is displayed only when using the optional
3.6GHz CPU.
NX Memory Protection Disabled (Fixed parameter) Configures the CPU internal setting.
Note:
Do not set this item to [Enabled] when the
Linux OS is used.