Dell Precision T5610 (Late 2013) - Manual (Page 11)

3. Hold the handle bar and press down on the blue latch to release the PSU.
4. Hold the handle bar to slide the PSU out of the computer.
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 .
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