Dell Vostro 3800 Slim Tower (Late 2013) - Manual (Page 14)

3. Disconnect the following power supply cables from the system board by pressing on the retention
latch and lifting it upwards.
• system fan power cable [1.2]
• system board power cable [3,4]
a. Un-thread the power cables from the metal clips.
4. Follow the steps below to remove the power supply unit:
a. Remove the screws that secure the power supply to the computer.
b. Push-in on the blue release tab beside the power supply [1].
c. Slide the power supply unit towards the front and remove it from the computer [2].
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