Dell Vostro 3901 Dell Vostro 3901 Owners Manual - Page 18

Installing the Power Supply Unit (PSU), Removing the Power Switch

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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 back and remove it from the computer. Installing the Power Supply Unit (PSU) 1. Slide the PSU towards the back of the computer until it snaps into place. 2. Replace the screws to secure the power supply until to the computer. 3. Connect the power cables to the system board. 4. Install the cover. 5. Follow the procedures in After Working Inside Your Computer. Removing the Power Switch 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove the: • cover • bezel 3. Follow the steps to remove the power switch: a. Disconnect the power-switch cable from the system board [1]. b. Un-thread the power-switch cable from the metal retention clip [2]. c. Remove the power button by pressing on the two latches and pulling it out from the slot [3,4]. 18

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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 back and remove it from the computer.
Installing the Power Supply Unit (PSU)
1.
Slide the PSU towards the back of the computer until it snaps into place.
2.
Replace the screws to secure the power supply until to the computer.
3.
Connect the power cables to the system board.
4.
Install the cover.
5.
Follow the procedures in
After Working Inside Your Computer
.
Removing the Power Switch
1.
Follow the procedures in
Before Working Inside Your Computer
.
2.
Remove the:
•
cover
•
bezel
3.
Follow the steps to remove the power switch:
a.
Disconnect the power-switch cable from the system board [1].
b.
Un-thread the power-switch cable from the metal retention clip [2].
c.
Remove the power button by pressing on the two latches and pulling it out from the slot [3,4].
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