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Supermicro C7Z170-M/C7H170-M Motherboard User’s Manual
Acoustic Noise Settings
Acoustic Noise Mitigation
Select Enable to help mitigate acoustic noise on certain SKUs when the
CPU is in deeper C-State. The options are Disabled and Enabled.
When the above is set to Enabled, the followings can be congured:
IA VR Domain
Disable Fast PKG C State Ramp for IA Domain
Select False to leave Fast ramp enabled during deeper C-States. Se-
lecting True will disable Fast ramp during deeper C-States. The options
are FALSE and TRUE.
Slow Slew Rate for IA Domain
This feature sets the VR IA Slew Rate for Deep Package C-State ramp
time. Slow slew rate equals Fast divided by the number 2, 4, 8, or
16. This feature is used to help reduce acoustic noise. The options are
Fast/2, Fast/4, Fast/8, and Fast/16.
GT VR Domain
Disable Fast PKG C State Ramp for GT Domain
Select False to leave Fast ramp enabled during deeper C-States. Se-
lecting True will disable Fast ramp during deeper C-States. The options
are FALSE and TRUE.
Slow Slew Rate for GT Domain
This feature sets the VR GT Slew Rate for Deep Package C-State ramp
time. Slow slew rate equals Fast divided by the number 2, 4, 8, or
16. This feature is used to help reduce acoustic noise. The options are
Fast/2, Fast/4, Fast/8, and Fast/16.
SA VR Domain
Disable Fast PKG C State Ramp for SA Domain
Select False to leave Fast ramp enabled during deeper C-States. Se-
lecting True will disable Fast ramp during deeper C-States. The options
are FALSE and TRUE.
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