IBASE MB966 - Manual (Page 39)

BIOS SETUP
MB966 User’s Manual 33
The CPU Configuration menu shows the following CPU details including
the manufacturer, CPU type, its frequency and cache levels. Other
options include:
Ratio CMOS Setting
Sets the ratio between CPU core clock and the FSB frequency.
MPS and ACPI MADT ordering
Modern ordering for Windows XP or later OSes. Legacy ordering for
Windows 2000 or earlier OSes.
Max CPU ID Value Limit
Disabled for Windows XP.
Intel Virtualization Tech
When enabled, a VMM can utilize the additional HW Caps. Provided by
Intel Vitualization Tech. Note: A full reset is required to change the
setting.
Active Processor Cores
Number of cores to enable in each processor package.
A20M
Legacy OSes and Aps may need A20 M enabled.
Intel PPM Configuration
This configuration includes the following options:
Intel SpeedStep tech
Disable: Disable GV3 Enable: Enable GV3
Intel TurboMode tech
Turbo mode allows processor cores to run faster than marked frequency in
specific condition.
Intel C-STATE tech
CState: CPU idle is set to C2/C3/C4.
C State package limit setting
Selected option will program into C State package limit register.
C3 State / C6 State
Nehalem C state action select.
C1 Auto Demotion
When enabled, CPU will conditionally demote C3/C6/C7 requests to C1
based on uncore auto-demote information.
C3 Auto Demotion
When enabled, CPU will conditionally demote C6/C7 requests to C3 based
on uncore auto-demote information.