Dell 23.8" OptiPlex 7410 All-in-One Desktop Computer (Gray) - Manual (Page 74)

Power-supply unit
Removing the power-supply unit
Prerequisites
1. Follow the procedure in Before working inside your computer .
2. Remove the stand .
3. Remove the back cover .
4. Remove the system-board shield .
5. Remove the I/O cover .
About this task
The following image(s) indicate the location of the power-supply unit and provides a visual representation of the removal
procedure.
Steps
1. Press and hold the securing clip and disconnect the processor-power cable (ATX CPU) from the system board.
2. Disconnect the control-signal cable (CTRL) from the system board.
74 Removing and installing Customer Replaceable Units (CRUs)