Installing Components 29
Setting system board jumpers
The system board jumpers let you change several system functions.
Jumpers are set to the default positions at the factory. You may need to
change the jumper settings to perform the following functions:
•
Set processor/bus speed settings
•
Clear CMOS memory
Processor/bus speed jumper
The system board supports a range of processor speeds, which are set by
changing jumper shunts on the block. If you upgrade your processor, you
may need to change jumper settings. The JP22 jumper configuration block
lets you set the processor speed.
The system automatically detects the bus speed supported by the processor
and uses the jumper settings in conjunction with the detected bus speed to
set the processor speed. If two processor are present and they support
different speeds, the system will operate at the slower speed. Move the
jumper shunts on jumper block JP22 to connect the jumper pins according
to the following table.
4079tl.book Page 29 Tuesday, December 22, 1998 2:04 PM
Содержание ALR 8200
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