Installing the power supply unit or PSU
1. Insert the PSU in the chassis and slide it toward the back of the computer to secure it.
2. Tighten the screws to secure the PSU to the back of the computer.
3. Route the PSU cables through the retention clips.
4. Connect the power cables to the system board.
5. Install the:
a. optical drive
b. 2.5–inch drive assembly
c. bezel
d. cover
6. Follow the procedure in After working inside your computer.
Power switch
Removing power switch
NOTE: Depending on the configuration you order, you may see either of the heat sinks as shown in the image below.
Disassembly and reassembly 31
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