Heat-Sink; Removing The Heat-Sink - Dell OptiPlex 3090 Ultra Service Manual

3. Tighten the (M2x3) captive screw and replace the four (M2x3) screws to secure the system board to the chassis.
4. Route the power-button cable and the coin-cell battery cable through the routing guides.
5. Connect the power-button cable and the coin-cell battery cable to the connectors on the system board.
6. Route the WLAN antenna cables through the routing guides.
NOTE: The antennas should be aligned with the notches in the system board and the cable routing should not be over
the system board QR code.
Next steps
1. Install the solid-state
2. Install the memory module.
3. Install the WLAN card.
4. Install the system fan.
5. Install the cover.
6. Install the hard-drive assembly.
7. Install the device on Fixed stand/Pro 1 height-adjustable stand/Offset VESA mount/Pro 2 height-adjustable stand/Wall
mount.
8. Follow the procedure in

Heat-sink

Removing the heat-sink

Prerequisites
1. Follow the procedure in
2. Remove the device from
mount.
3. Remove the hard-drive
4. Remove the cover.
5. Remove the system fan.
6. Remove the WLAN card.
7. Remove the solid-state
8. Remove the memory module.
9. Remove the system board.
About this task
The figure indicates the location of the heat-sink assembly and provides a visual representation of the removal procedure.
118 Removing and installing components
drive.
after working on your device.
before working inside your
fixed stand/Pro 1 height-adjustable stand/Offset VESA mount/Pro 2 height-adjustable stand/Wall
assembly.
drive.
device.