Dell OptiPlex 7090 Tower Service Manual - Page 82

Replace the eight screws #6-32 that secure the system board to the chassis.

Page 82 highlights

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. Replace the (M2x4) screw to secure the system board to the chassis. 3. Replace the eight screws (#6-32) that secure the system board to the chassis. 82 Removing and installing components

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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.
Replace the (M2x4) screw to secure the system board to the chassis.
3.
Replace the eight screws (#6-32) that secure the system board to the chassis.
82
Removing and installing components