Dell Inspiron 3420 Owner's Manual page 74

10 Remove the thermal cooling assembly (see "Removing the Thermal
Cooling Assembly" on page 49).
11 Remove the processor (see "Removing the Processor Module" on page 51).
12 Disconnect the display cable, speakers cable, audio-board cable,
USB-board cable, coin-cell battery cable, and AC-adapter cable from the
connectors on the system board.
1
2
3
1 display cable
3 speakers cable
5 audio-board cable
13 Remove the two screws that secure the system board to the computer base.
14 Lift the system board at an angle and release the connectors on the system
board from the slots on the computer base.
NOTE:
Based on the selection you made at the time of purchase of your computer,
the dimensions of the system board and the location of the system board
components may vary.
74
System Board
2 AC-adapter cable
4 coin-cell battery cable
6 USB-board cable
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5
4