Dell Precision T3600 (Mid 2012) - Manual (Page 29)

7. Remove the PSU card from the computer.
Installing the PSU Card
1. Replace the PSU card in its slot.
2. Tighten the screws to secure the PSU card in its slot.
3. Replace the power cables in their slots.
4. Replace the baffle cover in its slot.
5. Install the cover.
6. Follow the procedures in After Working Inside Your Computer .
Removing the Front Bezel
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the cover.
3. Gently pry the front bezel retention clips away from the chassis located at the edge of front bezel.
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