Dell Precision T3600 (Mid 2012) - Manual (Page 8)

Installing the Power Supply Unit (PSU)
1. Hold the PSU handle and slide the PSU into the computer.
2. Follow the procedures in After Working Inside Your Computer .
Removing the Cover
1. Follow the procedures in Before Working Inside Your Computer .
2. Lay down the computer on it's right side with the latch facing up.
3. Lift up the cover-release latch.
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