
Replacing the power supply assembly
To replace the power-supply assembly:
1.
Open the computer cover. See “Opening the cover” on page 130.
2.
Locate the power-supply assembly. See “Internal components” on page 128.
3.
Disconnect the power-supply cables
1
,
2
, and
3
from the system-board
connectors, all adapter cards (some models) and from all drives.
Note:
The latches for the power connectors are not easily accessible using
fingers. Use a tool such as a screwdriver or a pair of pliers to unlatch
the connectors.
4.
Remove the power-supply cables from the cable clips and ties.
5.
Remove the microprocessor heat sink (see “Replacing the heat sink” on page
141) nearest the power supply before removing the power supply from the
chassis.
6.
Remove the four screws at the rear of the chassis that secure the power
supply.
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