Chapter 4: BIOS
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HardWare P-States (HWP)
Use this feature to enable or disable hardware P-States support. The options are Disabled
and Enabled.
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.
Turbo Mode
Select Enabled for processor cores to run faster than the frequency specied by the
manufacturer. The options are Disabled and Enabled.
Package Power Limit MSR Lock
Select Enabled to lock the package power limit for the model-specic registers. The op-
tions 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 congure 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. Enter 0 to use the manufacture default setting.
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.
3-Core Ratio Limit Override
This increases (multiplies) 3 clock speeds in the CPU core in relation to the bus speed
when three CPU cores are active. Press "+" or "-" on your keyboard to change the value.
Enter 0 to use the manufacture default setting.
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