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Supermicro C7Z270-CG-L Motherboard User’s Manual
PSYS Offset
PSYS Offset is dened in 1/4 increments and uses the BIOS VR mailbox
command 0x9. For example, enter 100 for a 25 offset. Range is 0-255.
PSYS PMax Power
The value is dened in 1/8 Watt increments and uses the BIOS VR mail-
box command 0xB. For example, enter 1000 for a 125 Watt PMax value.
Range is 0-8192. Enter 0 for AUTO.
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 Enabled and Disabled.
When the above is set to Enabled, the following 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 True and False.
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 True and False.
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.
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