Supermicro X13DEG-OA User Manual page 108

Super X13DEG-OA User's Manual
Enhanced Halt State (C1E)
Select Enable to enable "Enhanced Halt State" support, which will significantly reduce the
CPU's power consumption by minimizing CPU's clock cycles and reduce voltage during
a "Halt State". The options are Disable and Enable.
Package C State Control
Package C State
Use this feature to optimize and reduce CPU package power consumption in the idle
mode. Please note that the changes you've made in this setting will affect all CPU cores
or the circuits of the entire system. The options are C0/C1 state, C2 state, C6 (non
Retention) state, C6 (Retention) state, No Limit, and Auto.
CPU1 Core Disable Bitmap / CPU2 Core Disable Bitmap

Available Bitmap:
This feature displays the available bitmap.
Disable Bitmap
Enter 0 to enable this feature for all CPU cores. Enter FFFFFFFFFFF to disable this feature
for all CPU cores. Please note that at least one core per CPU must be enabled. Disabling
all cores is not allowed. The default setting is 0.
Hyper-Threading [ALL]
Select Enable to use Intel Hyper-Threading Technology to enhance CPU performance. The
options are Enable and Disable.
Hardware Prefetcher
If this feature is set to Enable, the hardware prefetcher will prefectch data from the main
system memory to Level 2 cache to help expedite data transaction to enhance memory
performance. The options are Enable, and Disable.
Adjacent Cache Prefetch
Select Enable for the CPU to prefetch both cache lines for 128 bytes as comprised. Select
Disable for the CPU to prefetch both cache lines for 64 bytes. The options are Enable and
Disable.
DCU Streamer Prefetcher
If this feature is set to Enable, the Data Cache Unit (DCU) streamer prefetcher will prefetch
data streams from the cache memory to the DCU to speed up data accessing and processing
to enhance CPU performance. The options are Enable and Disable.
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