IBM 866441Y Hardware Maintenance Manual - Page 172

Changing jumper positions, Two-pin jumper blocks

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Changing jumper positions Jumpers located on the system board and the processor board help you to customize the way the server operates. The system board and processor board contain two-pin and three-pin jumper blocks. In some cases, groups of jumpers might combine to define a function. Two-pin jumper blocks: Covering both pins with a jumper defines one function of the jumper block. To change the function of the jumper block, cover one pin only or remove the jumper entirely. The following illustration identifies pins 1 and 2 on a two-pin jumper block. 21 To change a jumper's position for a two-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 100). 3. Do one of the following: Lift the jumper straight off the pin block. Align the holes in the bottom of the jumper with the two pins on the pin block, and then slide the jumper onto these pins. Align one of the holes in the bottom of the jumper with one of the pins on the pin block, and then slide the jumper onto that pin only. 164 Netfinity Server HMM

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Changing jumper positions
Jumpers located on the system board and the processor
board help you to customize the way the server operates.
The system board and processor board contain two-pin
and three-pin jumper blocks.
In some cases, groups of jumpers might combine to define
a function.
Two-pin jumper blocks:
Covering both pins with
a jumper defines one function of the jumper block.
To
change the function of the jumper block, cover one pin
only or remove the jumper entirely.
The following illustration identifies pins 1 and 2 on a
two-pin jumper block.
2
1
To change a jumper's position for a two-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
100).
3.
Do one of the following:
±
Lift the jumper straight off the pin block.
±
Align the holes in the bottom of the jumper with
the two pins on the pin block, and then slide the
jumper onto these pins.
±
Align one of the holes in the bottom of the
jumper with one of the pins on the pin block, and
then slide the jumper onto that pin only.
164
Netfinity Server HMM