Power-Supply Fan; Removing The Psu Fan - Dell OptiPlex 7490 All-In-One Service Manual

Steps
1. Align and place the PSU in the slot on the display-assembly base.
2. Replace the screw (M3x5) to secure the PSU to the display-assembly base.
3. Connect the power-supply cable to the connector on the system board.
4. Route the power-supply cable through the routing guides on the rear-I/O bracket and PSU fan.
5. Align the screw hole on the power-supply socket with the screw hole on the rear-I/O bracket, and place it in the slot on the
rear-I/O bracket.
6. Replace the screw (M3x5) to secure the power-supply socket to the rear-I/O bracket.
Next steps
1. Install the bottom cover.
2. Install the system-board
3. Install the back cover.
4. Install the cable cover
5. Install the stand.
6. Follow the procedure in

Power-supply fan

Removing the PSU fan

Prerequisites
1. Follow the procedure in
2. Remove the stand.
3. Remove the cable cover
4. Remove the back cover.
5. Remove the system-board
6. Remove the bottom cover.
About this task
The following image indicates the location of the PSU fan and provides a visual representation of the removal procedure.
50 Removing and installing components
shield.
(optional).
After working inside your
Before working inside your
(optional).
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computer.
computer.