Dell Vostro 3460 (Early 2012) - Manual (Page 32)

Removing the System Board
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the:
a) battery
b) base cover
c) memory
d) optical drive
e) hard drive
f) keyboard
g) palmrest
h) heat-sink fan
i) WLAN
3. Disconnect the power cable from the system board.
4. Disconnect the speaker cable from the system board.
5. Remove the screws that secures the system board.
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