Chapter 4: AMI BIOS
4-7
PECI
Select Enabled to activate the Platform Environment Control Interface
(PECI). The options are Disabled and Enabled.
Active Processor Cores
Use this feature to select the number of active processor cores. The
options are All, 1, 2, and 3. (These options depend on how many cores
are supported by the CPU.)
Hyper-Threading
Select Enabled to support Intel Hyper-threading Technology to enhance
CPU performance. The options are Disabled and Enabled.
BIST
Select Enabled to activate the Built-In Self Test (BIST) on reset. The
options are Disabled and Enabled.
JTAG C10 Power
Select Enabled to activate power JTAG in C10 and deeper power states.
The options are Enabled and Disabled.
AP Threads Idle Manner
Select Enabled to activate AP threads Idle Manner for waiting signal to
run. The options are HALT Loop, MWAIT Loop, and RUN Loop.
AP Threads Handoff Manner
Select Enabled to activate AP threads Idle Manner for waiting signal to
run. The options are HALT Loop and MWAIT Loop.
AES
Select Enable for Intel CPU Advanced Encryption Standard (AES) Instruc-
tions support to enhance data integrity. The options are Disabled and
Enabled.
Machine Check
Select Enable to activate Machine Check. The options are Disabled and
Enabled.
MonitorMWait
Select Enable to activate MonitorMWait. The options are Disabled and
Enabled.
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