Dell Inspiron M431R Owner's Manual page 48

6 Remove the screw that secures the system board to the computer base.
7 Lift the system board at an angle and release the system-board ports from the slots
on the computer base.
8 Lift the system-board assembly off the computer base.
1 system board
9 Turn the system board over.
10
Remove the thermal-cooling assembly. See "Removing the Thermal-Cooling
Assembly" on page 51.
48
| Removing the System Board
2 screw
2
1