Replacing the power supply
Attention:
Do not remove the computer cover or attempt any repair before reading the “Important safety information” in the Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.
To replace the power supply:
1.Remove the computer cover. See “Removing the computer cover” on page 5. Note: For this procedure, it helps to lay the computer on its side.
2.Disconnect the power supply cables from the system board and from all drives. See “Identifying parts on the system board” on page 4.
3.Remove the four screws that secure the power supply at the rear of the chassis.
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.
8.Reconnect a power supply connector to each of the drives.
9.Go to “Completing the installation” on page 29.
8Hardware Replacement Guide
