Precision 3640 Tower Service Manual

Removing the power supply unit

About this task

The following images indicate the location of the power supply unit and provides a visual representation of the removal procedure.

1. Lift the side of the PCIe holder to release it from the graphics card and slide the holder out from the slot in the chassis.
2. Remove the two #6-32x1/4 screws that secure the power-supply bracket to the chassis and lift the power-supply bracket from the system.
3. Remove the four #6-32x1/4 screws that secure the power-supply unit to the chassis and lift the PSU off the chassis.