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Dell Vostro 3890 Service Manual page 35

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Steps
1. Place and slide the power supply into its slot on the chassis.
2. Replace the three (#6-32) screws to secure the power-supply unit to the chassis.
3. Route the power cable through the routing guides on the chassis and connect the power cables to their respective
connectors on the system board.
NOTE:
The power-supply cable is connected to the system board at two locations and supply power to the following
components at the two location:
● Processor - ATX CPU connector
● System board - ATX SYS connector
Next steps
1. Install the
side
cover.
2. Follow the procedure in
Fan and heat-sink assembly
Removing the fan and heat-sink assembly
Prerequisites
1. Follow the procedure in
WARNING:
The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to
cool before touching it.
After working inside your
Before working on your
computer.
computer.
Disassembly and reassembly
35

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