Dell PRECISION 530 - Manual (Page 41)

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 device s, 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).