User Manual

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Chapter 4: BIOS Setup
AVX P1 [Normal]
AVX P1 level selection.
Configuration options: [Normal] [Level 1] [Level 2]
Activate SST-BF [Disable]
Allows you to enable or disable SST-BF.
Configuration options: [Disable] [Enable]
The following item appears only when
Activate SST-BF
is set to
[Enable]
.
Configure SST-BF [Enable]
Allows BIOS to configure SST-BF High Priority Cores so that SW does not have to
configure.
Configuration options: [Disable] [Enable]
EIST PSD Function [HW_ALL]
Configuration options: [HW_ALL] [SW_ALL]
Boot performance mode [Max Performance]
Allows you to select the performance state that the BIOS will set before OS hand off.
Configuration options: [Max Performance] [Max Efficient] [Set by Intel Node Manager]
Energy Efficient Turbo [Enable]
Allows you to enable or disable Energy Efficient Turbo.
Configuration options: [Disable] [Enable]
Turbo Mode [Enabled]
Allows you to enable or disable processor Turbo Mode (requires EMTTM enabled as
well).
Configuration options: [Disable] [Enable]
CPU Flex Ratio Override [Disable]
Allows you to enable or disable CPU Flex Ratio Programming.
Configuration options: [Disable] [Enable]
CPU Flex Ratio [23]
Non-Turbo Mode Processor Core Ratio Multiplier.
Configuration options: [0] - [100]
GPSS timer [500 us]
P-state changes hysteresis time window.
Configuration options: [0 us] [50 us] [500 us]
Perf P-Limit
Perf P-Limit Differential [1]
Parameter used to tune how far below local socket frequency remote
socket frequency is allowed to be. Also impacts rate at which frequency
drops when feature disengages.
Perf P-Limit Clip [1F]
Maximum value the floor is allowed to be set to for perf P-Limit.
Perf P-Limit Threshold [F]
Uncore frequency threshold above which this socket will trigger the feature
and start trying to raise frequency of other sockets.