Processor Fan And Heat-Sink Assembly; Removing The Processor Fan And Heat-Sink Assembly - Dell OptiPlex Small Form Factor 7020 Owner's Manual

Figure 43. Installing the power-supply unit
Steps
1. Place the power-supply unit on the chassis and slide it towards the back of the chassis.
2. Replace the three screws (#6-32) that secure the power-supply unit to the chassis.
3. Route the power-supply cables through their routing guides on the chassis.
4. Connect the power-supply cables to their connectors (ATX CPU1, ATX CPU2 and ATX SYS) on the system board.
Next steps
1. Install the disk-drive cage.
2. Install the 3.5-inch hard
3. Install the front bezel.
4. Install the side cover.
5. Follow the procedure in

Processor fan and heat-sink assembly

Removing the processor fan and heat-sink assembly

CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites
1. Follow the procedure in
2. Remove the side cover.
3. Remove the front bezel.
4. Remove the 3.5-inch hard
5. Remove the disk-drive
90 Removing and installing Field Replaceable Units (FRUs)
drive, if applicable.
After working inside your
Before working inside your
drive, if applicable.
cage.
computer.
computer.
Restricted - Confidential