Lenovo ThinkCentre Hardware Maintenance Manual page 95

4. Remove the four screws at the rear of the chassis that secure the power
supply assembly.
5. Lift the power supply assembly out of the chassis.
6. Ensure that the new power supply assembly is the correct replacement. If
your power supply assembly has a voltage-selection switch, ensure that you
set the voltage-selection switch to match the voltage available at your
electrical outlet. If necessary, use a ballpoint pen to slide the switch to a
different position.
v If the voltage supply range in your local country or region is 100–127 V AC,
set the switch to 115 V.
v If the voltage supply range in your local country or region is 200–240 V AC,
set the switch to 230 V.
7. Install the new power supply assembly into the chassis so that the screw holes
in the power supply assembly align with those in the chassis.
8. Install the four screws to secure the power supply.
Note: Use only the screws provided by Lenovo.
9. Reconnect the power supply cables to the system board and the drives.
10. Go to "Completing the FRU replacement" on page 121.
Chapter 8. Replacing FRUs - Tamdhu Computers
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