Dell OptiPlex 9010 All In One (Mid 2012) - Manual (Page 26)

Installing the Power Supply Unit
1. Place the power supply unit on the computer.
2. Tighten the screws to secure the power supply unit to the chassis.
3. Thread the cable on the hooks in the computer.
4. Connect the power-supply cable to the connector on the system board.
5. Install:
a) power-supply fan
b) input/output board shield
c) system-board shield
d) VESA mount bracket
e) back cover
f) VESA stand
6. Follow the procedures in After Working Inside Your Computer .
Removing the Heat-Sink Assembly
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the:
a) VESA stand
b) back cover
c) VESA mount bracket
d) system-board shield
3. Remove the screws that secure the thermal module to the chassis. Lift the heat-sink assembly up and remove it
from the computer.
Installing the Heat-Sink Assembly
1. Align and place the heat-sink assembly on the computer.
2. Tighten the screws to secure the heat-sink assembly to the chassis.
3. Install:
a) system-board shield
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