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66 Intel
®
Server System SR1680MV Service Guide
V02.61 © Copyright 1985-2006, American Megatrends, Inc.
Table 10. CPU Configuration Submenu
BIOS Setup Utility
Main
Advanced
Boot Security Exit
Configure advanced CPU settings
Table 11. CPU Configuration Submenu Fields
Menu Fields Settings Description
Advanced/Configure advanced CPU settings
Ratio CMOS Setting 19* Sets the ratio between CPU core clock and the
FSB frequency.
Hardware Prefetcher Disabled
Enabled*
For UP platforms, leave it enabled. For DP/MP
servers, it may use to tune performance to the
specific application.
Adjacent Cache Line
Prefetch
Disabled
Enabled*
For UP platforms, leave it enabled. For DP/MP
servers, it may use to tune performance to the
specific application.
Max CPUID Value Limit Disabled*
Enabled
Disabled for Microsoft Windows XP*
Intel(R) Virtualization
Te ch
Disabled*
Enabled
When enabled, a VMM can utilize the additional
HW Caps. Provided by Intel(R) Virtualization
Tech. Note: A full reset is required to change
the setting.
Execute-Disable Bit
Capability
Disabled
Enabled
When disabled, force the XD feature flag to
always return 0.
Intel(R) HT Technology Disabled*
Enabled
When “Disabled” only one thread per enabled
core is enabled.
Active Processor Cores All*
1
2
Number of cores to enable in each processor
package.
A20M Disabled*
Enabled
Legacy operating systems and APs may need
A20M enabled.
Intel(R) SpeedStep(tm)
tech
Disabled
Enabled*
Disable: Disable GV3
Enable: Enable GV3
Intel(R) C-STATE tech Disabled*
Enabled
CState: CPU idle is set to C2/C3/C4