- Notes, cautions, and warnings
- Working on your computer
- Stands
- Removing and installing components
- Recommended tools
- Screw List
- Major components of your system
- Hard-drive assembly
- Hard-drive bracket
- Hard drive
- Solid-state drive in the hard-drive bay
- Solid-state drive daughter board
- Cover
- Memory module
- WLAN card
- Internal solid-state drive
- eMMC Storage module
- System fan
- Power button
- Coin-cell battery
- System board
- Heat-sink
- Replacing the chassis
- Software
- System setup
- Troubleshooting
- Getting help and contacting Dell
OptiPlex 7090 Ultra Service Manual
Removing the system board
Prerequisites
- Follow the procedure in before working inside your device.
- Remove the device from fixed stand/Pro 1 height-adjustable stand/Offset VESA mount/Pro 2 height-adjustable stand/Wall mount.
- Remove the
hard-drive assembly.
NOTE For systems configured with solid-state drive in the hard-drive bay
- Remove the M.2 2280 solid-state drive/M.2 2230 solid-state drive.
- Remove the solid-state drive daughter board.
- Remove the cover.
- Remove the system fan.
- Remove the WLAN card.
- Remove the solid-state drive.
- Remove the memory module.
About this task
The figure indicates the location of the system board and provides a visual representation of the removal procedure.
Steps
- Disconnect the power-button cable and the coin-cell battery cable from the connectors on the system board.
- Unroute the power-button cable and the coin-cell battery cable from the routing guides.
- Unroute the WLAN antenna cables from the routing guides.
NOTE Observe the routing of the WLAN antenna cables inside the chassis as you remove them. Route these cables properly when you replace the component to prevent the cables from being pinched or crimped.
- Loosen the (M2x3) captive screw and remove the four (M2x3) screws that secure the system board to the chassis.
- Slightly lift and slide the system board out of the chassis.
NOTE The system board is removed along with the heat-sink connected to it.
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