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Changing jumper positions
Jumpers located on the system board help you to customize the way the server
operates.
The server system board contains two-pin and three-pin jumper blocks.
In some cases, groups of jumpers might combine to define a function.
Three-pin jumper blocks
With the three-pin jumper blocks, each jumper covers two of the three pins on a pin
block. You can position the jumper to fit over the center pin and either of the other
two pins.
The following illustration identifies pins 1, 2, and 3 on a three-pin jumper block.
21
3
To change a jumper position for a three-pin jumper block:
1. Turn off the server; then, disconnect all power cords and external cables.
2. Remove the server cover (see “Removing the server top cover and bezel” on
page 53).
3. Lift the jumper straight off the pin block.
4. Align the holes in the bottom of the jumper with the center pin and the pin that
was not covered previously.
5. Slide the jumper fully onto these pins.
6. Reinstall the server cover and connect the cables (see “Installing the server top
cover and bezel” on page 74).
Installing options 69