Service Manual

41
Power Supply
• Removing the power supply
• Replacing the power supply
Removing the Power Supply
CAUTION: Before you perform this procedure, see "Safety First—
For You and Your Computer."
NOTICE: Before disconnecting a device from the computer, wait 10 to 20
seconds after disconnecting the computer from its electrical outlet. Before
removing a component from the system board, verify that the standby power
light on the system board has turned off. To locate this light, see "System Board
Components."
1
Turn off the computer and devices, disconnect them from their
electrical outlets, and wait 10 to 20 seconds, lay the computer on its
right side, and open the computer cover.
2 Remove the expansion cards.
3 Remove the expansion-card cooling fan and guide.
4 Disconnect the power supply cables and the expansion-card cooling
fan cable from the system board, and disconnect the drive power cable
(see the following figure).