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Power Supply
Dell Precision™ WorkStation 340 Service Manual
Removing the Power Supply
CAUTION: Before you perform this procedure, see "Safety
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, wait 10 to 20 seconds, lay the computer on its side, and open the computer cover.
Small Desktop Computer
1push button
2AC power connector
1 
power supply screws (2) 
