Dell Vostro 3460 (Early 2012) - Manual (Page 36)

4. Lift and remove the heat sink from the system board.
Installing the Heat Sink
1. Place the thermal module on the system board.
2. Tighten the screws to secure the heat sink to the system board.
3. Install the:
a) system board
b) heat-sink fan
c) palmrest
d) keyboard
e) hard drive
f) optical drive
g) base cover
h) battery
4. Follow the procedures in After Working Inside Your Computer .
Removing the Speakers
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the:
a) battery
b) base cover
36