Dell Precision 3240 Compact Service Manual page 78

Steps
1. Align and lower the system board into the system until the connectors at the back of the system board align with the slots
on the chassis, and the screw holes on the system board align with the standoffs on the system.
2. Align the slot on the hard drive caddy support with system board and place the hard drive caddy on the system board.
3. Replace the screw (6-32) to secure the hard drive caddy support to the system board.
4. Replace the three (M3x4) screws and three (6-32) screws to secure the system board to the chassis.
Next steps
1. Install the interposer card.
2. Install the heat sink.
3. Install the riser card.
4. Install the memory modules.
5. Install the speaker.
6. Install the fan assembly.
7. Install the WLAN card.
8. Install the solid-state
9. Install the hard drive assembly.
10. Install the front bezel.
11. Install the SMA antenna.
12. Install the top cover.
13. Install the side cover.
14. Follow the procedure in
78 Disassembly and reassembly
drive.
after working inside your computer.