Supermicro SUPERO PDSBA+ User Manual page 57

Chapter 4: BIOS
Advanced Processor Options
Access the submenu to make changes to the following settings.
CPU Speed
This is a display that indicates the speed of the installed processor.
Frequency Ratio
(*Available when supported by the CPU.)
The feature allows the user to set the internal frequency multiplier for the CPU.
The options are: Default and x9.
CPU Overclocking
(*Available when supported by the CPU.)
Select enabled to enable CPU Overclocking which will cause the CPU to operate
at a higher speed than that is intended . (*Note: Supermicro does not recommend
CPU overclocking because it might impede CPU or system stability.) The options
are: Disabled, +5%, +10%, +15%, and +20%.
Core-Multi-Processing
(*Available when supported by the CPU.)
Set to Enabled to use a processor's Second Core and beyond. (Please refer to
Intel's web site for more information.) The options are Disabled and Enabled.
Machine Checking
(*Available when supported by the CPU.)
Set to Enabled to activate the function of Machine Checking and allow the CPU to
detect and report hardware (machine) errors via a set of model-specifi c registers
(MSRs). The options are Disabled and Enabled.
Fast String Operations
(*Available when supported by the CPU.)
Set to Enabled to enable the fast string operations for special CPU instructions.
The options are Disabled and Enabled.
Compatible FPU Code
(*Available when supported by the CPU.)
Set to Enabled to keep the content of the last instruction Operating Code (OPCode)
in the fl oating point (FP) state. The options are Disabled and Enabled.
Split Lock Operation
Set to Enabled to mask alignment check exceptions for split-lock transactions. The
options are Disabled and Enabled.
Thermal Management 2
(*Available when supported by the CPU.)
Set to Enabled to use Thermal Management 2 (TM2) which will lower CPU voltage
and frequency when the CPU temperature reaches a predefi ned overheat threshold.
Set to Disabled to use Thermal Manager 1 (TM1), allowing CPU clocking to be
regulated via CPU Internal Clock modulation when the CPU temperature reaches
the overheat threshold.
Adjacent Cache Line Prefetch
(*Available when supported by the CPU.)
The CPU fetches the cache line for 64 bytes if this option is set to Disabled. The
CPU fetches both cache lines for 128 bytes as comprised if Enabled. The options
are Disabled and Enabled.
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