Supermicro X11SAT User Manual page 72

Chapter 4: BIOS
Intel ® SpeedStep™
Intel SpeedStep Technology allows the system to automatically adjust processor voltage and
core frequency to reduce power consumption and heat dissipation. The options are Disabled
and Enabled.
Power Limit 1 Override
Select Enabled to support average power limit (PL1) override. The default setting is Disabled.
Power Limit 2 Override
Select Enabled to support rapid power limit (PL2) override. The default setting is Enabled.
Power Limit 2
Use this item to configure the value for Power Limit 2. The value is in milli watts and the step
size is 125mW. Use the number keys on your keyboard to enter the value. Enter 0 to use the
manufacture default setting If the value is 0, the BIOS will set PL2 as 1.25* TDP.
1-Core Ratio Limit Override
This increases (multiplies) 1 clock speed in the CPU core in relation to the bus speed when
one CPU core is active. Press "+" or "-" on your keyboard to change the value. Enter 0 to
use the manufacture default setting.
2-Core Ratio Limit Override
This increases (multiplies) 2 clock speeds in the CPU core in relation to the bus speed when
two CPU cores are active. Press "+" or "-" on your keyboard to change the value. Enter 0 to
use the manufacture default setting.
CPU C-States
Use this feature to enable the C-State of the CPU. The options are Disabled and Enabled.
Enhanced C-States
Use this feature to enable the enhanced C-State of the CPU. The options are Disabled and
Enabled.
C-State Auto Demotion
Use this feature to prevent unnecessary excursions into the C-states to improve latency. The
options are Disabled, C1, C3, and C1 and C3.
C-State Un-Demotion
This feature allows the user to enable or disable the un-demotion of C-State. The options are
Disabled, C1, C3, and C1 and C3
Package C-State Demotion
Use this feature to enable or disable the Package C-State demotion. The options are Disabled
and Enabled.
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