IBM 866011U - Netfinity 5500 - 8660, Hardware Maintenance Manual

Page: 161 / 402

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.
2 1 3
To change a jumper's position for a three-pin jumper
block:
1. Turn off the server; then, disconnect the server power
cords.
2. Remove the server cover (see “Preparing to install
options” on page 220).
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 “Completing the installation” on page 154).
Netfinity 5500 - Type 8660
153