Dell Vostro 3681 Service Manual page 57

Steps
1. Slide the front I/O-ports on the system board into the front I/O-slots on the chassis and align the screw holes on the
system board with the screw holes on the chassis.
2. Align the front I/O-bracket with the slots on the chassis.
3. Lay the system unit vertically and secure it using the eight #6-32 screws to the chassis.
4. Replace the screw (M2x4) that secures the system board to the chassis.
5. Connect the 4-pin power supply ATEX connector to the system board.
6. Connect the 6-pin power supply ATEX connector to the system board.
7. Connect the front I/O cable connector to the system board.
8. Connect the SATA cables to the system board.
9. Connect the power switch cable to the system board.
Next steps
1. Install the processor.
2. Install the heat sink.
3. Install the media card reader
4. Install the WLAN card
5. Install the solid-state drive/Intel Optane memory
6. Install the graphics card.
module.
Disassembly and reassembly 57