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Chapter 5 BIOS
TM1
Select Enable to activate TM1 support for system thermal monitoring. TM1 allows the CPU to
regulate its power consumption based upon the modulation of the CPU Internal clock when
the CPU temperature reaches a pre-defined overheating threshold. The options are Disable
and Enable.
TM2 Mode
Use this feature to select the throttling mode for TM2. The options are LFM Throttling and
Adaptive Throttling.
*The feature above is not available when EIST (GV3) or TM1 is disabled.
Dynamic Self Refresh
Select Enable to support Dynamic Self-Refreshing for the onboard memory controller. The
options are Disable and Enable.
CPU C State
Select Enabled to enhance the Cx state of the CPU. Reboot the system for this feature to
take effect. The options are Disable and Enable.
Package C State limit
Use this item to set the limit on the C-State package register. The options are No Pkg C-State,
No S0Ix, and No Limit. This feature is not available when CPU C State is disabled.
Max Core C-State
Use this feature to select the CPU C-state. The options are C1 and C6. This feature is not
available when CPU C State is disabled.
Enhanced Halt State (C1E)
Select Enable to enable Enhanced Halt State support, which will significantly reduce the CPU's
power consumption by minimizing its clock cycles and voltage use during a Halt State. The
options are Disable and Enable. This feature is not available when CPU C State is disabled.
Monitor/Mwait
Select Enable to enable the Monitor/Mwait instructions. The Monitor instructions monitors
a region of memory for writes, and MWait instructions instruct the CPU to stop until the
monitored region begins to write. The options are Disable and Enable. This feature is not
available when CPU C State is disabled.
L1 Prefetcher
If enabled, the hardware prefetcher will prefetch streams of data and instructions from the main
memory to the L1 cache to improve CPU performance. The options are Enable and Disable.
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