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Hardware Configuration Features B-1
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This appendix provides specific information about the jumpers on your system board
and the input/output (I/O) ports and connectors on the back panel of your computer. It
also provides some basic information on jumpers and switches, a listing of interrupt
request (IRQ) assignments, and memory maps.
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Jumpers and switches provide a convenient and reversible way of reconfiguring the
circuitry on a printed circuit board. When reconfiguring your system, you may need to
change jumper settings on your system board; you may also need to change jumper
and/or switch settings on expansion cards or drives.
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Jumpers are small blocks on a circuit board with two or more pins emerging from
them. Plastic plugs containing a wire fit down over the pins. The wire connects the
pins and creates a circuit.
To change a jumper setting, pull the plug off its pin(s) and carefully fit it down onto the
pin(s) indicated.