User Manual

4-40
Chapter 4: BIOS Setup
CPU Thermal Control
CPU T-State Control
Software Controlled T-States [Disabled]
Allows you to enable or disable Software Controlled T-States.
Configuration options: [Disabled] [Enabled]
CPU - Advanced PM Tuning
Energy Perf BIAS
Power Performance Tuning [OS Controls EPB]
Configuration options: [OS Controls EPB] [BIOS Controls EPB]
The following item appears only when you set Power Performance Tuning to
[OS Controls EPB].
PECI PCS EPB [OS Controls EPB]
This option controls whether PECI has control over EPB.
Configuration options: [OS Controls EPB] [PECI Controls EPB using PCS]
The following item appears only when you set Power Performance Tuning to
[BIOS Controls EPB].
ENERGY_PERF_BIAS_CFG Mode [Balanced Performance]
Configuration options: [Performance] [Balanced Performance] [Balanced Power]
[Power]
Dynamic Loadline Switch [Enabled]
Configuration options: [Disabled] [Enabled]
Workload Configuration [UMA]
This option allows optimization for the workload characterization.
Configuration options: [UMA] [NUMA]
Averaging Time Window [17]
This option is used to control the effective window of the average C0 an P0 time.
Configuration options: [0] - [FF]
P0 TotalTimeThreshold Low [23]
The HW switching mechanism DISABLES the performance setting (0) when the total
P0 time is less than the threshold set.
Configuration options: [0] - [3F]
P0 TotalTimeThreshold High [3a]
The HW switching mechanism Enables the performance setting (0) when the total P0
time is greater than the threshold set.
Configuration options: [0] - [3F]