Supermicro SuperServer 5035L-I, User Manual

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Chapter 7: BIOS
7-7
Execute-Disable Bit Capability (Available when supported by the OS and
the CPU)
Set to Enabled to enable the Execute Disable Bit which will allow the processor
to designate areas in the system memory where an application code can execute
and where it cannot, thus preventing a worm or a virus from fl ooding illegal codes
to overwhelm the processor or damage the system during an attack. The default is
Enabled . (Refer to Intel and Microsoft Web Sites for more information.)
Core Multi-Processing
This feature disables one execution core when Disabled, turning off one core on
a dual-core CPU, and two cores on a quad-core CPU. The options are Enabled
and Disabled.
Clock-Spread Spectrum
Select Enable to use the feature of Clock Spectrum, which will allow the BIOS to
monitor and attempt to reduce the level of Electromagnetic Interference caused by
the components whenever needed. The options are Disabled and Enabled. If this
feature is set to Enabled, the following items will display:
Clock-Spread Spectrum Mode
This feature allows the user to select the Clock-Spread Spectrum Mode to
determine how the BIOS will monitor and reduce the level of Electromagnetic
Interference caused by the components. The options are Down (Down Spread),
and Center (Center Spread).
Clock-Spread Spectrum Control
This feature allows the user to determine the Clock-Spread Spectrum Control
level. The options are 0.5% , 1.0%, 1.5%, 2.0% and 2.5%.
X
Advanced Chipset Settings
The items included in the Advanced Settings submenu are listed below:
X
NorthBridge Confi guration
This feature allows the user to confi gure the settings for the Intel 945GC North-
Bridge.
DRAM Frequency
This feature allows the user to select the DRAM Frequency setting. The options
are Auto (Auto-detect) , 400 MHz, 533 MHz, and 667 MHz.