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114
Using the BIOS Setup Utility
Setting the system board jumpers
The system board has three jumpers. Each of these jumpers has a specific
function described in the sections below.
The CMOS Clear jumper
The CMOS (complimentary metal-oxide semiconductor) Clear jumper on the
system board (pins 1 through 3 of jumper J9F2) lets you clear all BIOS Setup
settings, protect them, or place them under control of the BMC. (See the figure
on page 13 for the location of the jumper.)
The following table shows the settings required to perform those tasks. Make
sure you turn off the server and unplug the power cord before moving the
jumper.
Mode
Jumper
Setting
Action When Set
CMOS protected
Pins 1-2
Normal operation
Clear CMOS
Pins 2-3
Causes the server to clear all
BIOS settings and return to
defaults
Caution
Moving the jumper while the power is on can damage your
server. Always turn off the server and unplug the power
cord(s) from the server before changing the jumper.
8506284.book Page 114 Thursday, July 13, 2000 11:43 AM
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