
4.
Lift the power supply out of the chassis.
5.
Install the new power supply into the chassis so that the screw holes in the
power supply align with those in the chassis.
6.
Install the four screws to secure the power supply.
Note:
Use only the screws provided by Lenovo.
7.
Reconnect the power supply connectors to the system board. See “Identifying
parts on the system board” on page 130.
8.
Reconnect a power supply connector to each of the drives.
9.
Go to “Completing the FRU replacement” on page 160.
Replacing the system board
The procedure to replace the system board is varies depending upon the machine
type.
Types 8701, 8705, 8973, 8975, 8983, 8985, 8995, 9265, 9277,
9279, 9287, 9379, 9387, 9389, 9635, 9637, and 9648
Important
The heat sink and microprocessor might be very hot. Make sure these
components are cool enough to safely handle before continuing this
procedure.
Note:
When replacing the system board you must also order a new retention
module for the new system board. Make sure you have a retention module
for the new system board before continuing with this procedure.
1.
Remove the cover. See “Removing the cover” on page 129.
Chapter 9. Replacing FRUs (tower computers)
135
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