Dell Vostro 270s (Late 2012) - Manual (Page 17)

Installing the Heat-Sink Assembly
1. Align the captive screws on the heat-sink assembly with the screw holes on the system board.
2. Tighten the captive screws to secure heat-sink assembly to the system board.
3. Connect the fan cable to the system board.
4. Install:
a) fan shroud.
b) cover.
5. Follow the procedures in After Working Inside Your Computer .
Removing the Input/Output (I/O) Panel
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove:
a) cover
b) fan shroud
c) front bezel
d) drive cage
e) expansion card
3. Disconnect the I/O panel cables from the system board
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