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Dell OptiPlex 7450 All-In-One - Power Supply Unit; Removing the Power Supply Unit - PSU

Dell OptiPlex 7450 All-In-One
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3. Secure the speaker cables through the retention clips.
4. Connect the speaker cable to the connector on the system board.
5. Install the:
a. system board shield
b. speaker cover
c. back cover
d. cable cover
e. stand
6. Follow the procedure in After working inside your computer.
Power supply unit
Removing the Power Supply Unit - PSU
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. stand
b. back cover
c. cable cover
d. speaker cover
e. system board shield
3. To release the PSU cable:
a. Unthread the power supply cables from the retention clips in the chassis [1].
b. Disconnect the power supply cable from the connector on the system board [2].
NOTE: Press lock clip to release the power supply cable from the system board.
4. To release the PSU:
32
Disassembly and reassembly

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