BIOS Settings Glossary version 13 - By Menu

BIOS Settings Dictionary – By Menu
V13 – November 2009
Extended Configuration • Default
• User Defined
Chooses the default or user defined settings for the extended
configuration options.
High Precision Timer • Enabled
• Disabled
Enables or disables HPET (High Precision Event Timer) support.
For information on HPET, refer to
http://en.wikipedia.org/wiki/HPET
Host Burn-in Mode This setting alters host clock frequencies.
Warning: This setting is intended for validation and test
purposes only. Altering clock frequencies may reduce system
stability and/or the useful life of the system and processor.
Operation at settings beyond component specification is not
covered by Intel component warranties. If any problems occur
during operation at non-default settings, reset the board to
default values.
Host Burn-in Mode
Percentage
Options are
dependent on
board and
processor
models; may be
set up to 30%.
Allows you to change the speed of the processor in terms of
percentage; either positive or negative.
Host Burn-in Mode Type • Positive
• Negative
Reads the percentage set in Host Burn-in Mode Percentage as
either a positive number (increases speed) or a negative number
(decreases speed).
Host Spread Spectrum • Down
• Center
Adjust the mean frequencies for core system clocks. Requires
additional POST time.
HPET • Enabled
• Disabled
Enables or disables HPET (High Precision Event Timer) support.
For information on HPET, refer to
http://en.wikipedia.org/wiki/HPET
IOAPIC Enable • Enabled
• Disabled
Enables or disables I/O Programmable Interrupt Controller.
For information on IOAPIC, refer to
http://en.wikipedia.org/wiki/IOAPIC
ISA Enable Bit • Enabled
• Disabled
Some older expansion devices require this to be enabled.
MCH Voltage Override • Default
• 1.525V
• 1.600V
• 1.625V
• 1.725V
Allows you to set the MCH V_CORE voltage.
Warning: This setting is intended for validation and test
purposes only. Altering clock frequencies may reduce system
stability and/or the useful life of the system and processor.
Operation at settings beyond component specification is not
covered by Intel component warranties. If any problems occur
during operation at non-default settings, reset the board to
default values.