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Supermicro C9Z390-PGW Motherboard User's Manual
Enhanced C-states
This feature enables Enhanced C1 Power State to lower system
energy consumption while all cores are in C-State. The options are
Disabled or Enabled.
C-State Auto Demotion
When this feature is enabled, the CPU will conditionally demote C-
State based on un-cored auto-demote information. The options are
Disabled, C1, C3, and C1 and C3.
C-State Un-demotion
When this feature is enabled, the CPU will conditionally un-demote
from demoted C3 or C1. The options are Disabled, C1, C3, and C1
and C3.
Package C-State Demotion
This feature enables the Package C-State demotion. The options
are Disabled or Enabled.
Package C-State Un-Demotion
When this feature is enabled, the CPU will conditionally un-demote
from demoted Packaged Package C-State Un-Demotion. The options
are Disabled or Enabled.
CState Pre-Wake
This feature enables the C-State pre wake. The options are Disabled
or Enabled.
IO MWAIT Redirection
When enabled, this feature will map and send the IO read instruc-
tions to the IO registers. The options are Disabled or Enabled.
Package C State Limit
Select Auto for the AMI BIOS to automatically set the limit on the
C-State package register. The options are C0/C1, C2, C3, C6, C7,
C7S, C8, C9, C10, CPU Default, and Auto.
Package C State Workaround
This feature enables a workaround for Package C State 6/7. The
options are Disabled or Enabled.
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