Dell G5 5090 Service Manual - Page 38

Installing the power-supply unit

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Steps 1. Lay the computer on the right side. 2. Remove the two screws (#6-32) that secure the power-supply unit cover to the chassis. NOTE: Only the computer with clear doors are shipped with power-supply unit cover. This step is applicable only for computers shipped with power-supply unit cover. 3. Slide and lift the power-supply unit cover off the power-supply unit. 4. Remove the three screws (#6-32) that secure the power-supply unit to the chassis. 5. Disconnect the power cables from the system board and remove them from the routing guides on the chassis. 6. Press the securing clip and slide the power-supply unit away from the back of the chassis. 7. Lift the power-supply unit off the chassis. Installing the power-supply unit Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. WARNING: The cables and ports on the back of the power-supply unit are color-coded to indicate the different power wattage. Ensure that you plug in the cable to the correct port. Failure to do so may result in damaging the power-supply unit and/or system components. About this task The following images indicate the location of the power-supply unit and provides a visual representation of the installation procedure. 38 Removing and installing components

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Steps
1.
Lay the computer on the right side.
2.
Remove the two screws (#6-32) that secure the power-supply unit cover to the chassis.
NOTE:
Only the computer with clear doors are shipped with power-supply unit cover. This step is applicable only for
computers shipped with power-supply unit cover.
3.
Slide and lift the power-supply unit cover off the power-supply unit.
4.
Remove the three screws (#6-32) that secure the power-supply unit to the chassis.
5.
Disconnect the power cables from the system board and remove them from the routing guides on the chassis.
6.
Press the securing clip and slide the power-supply unit away from the back of the chassis.
7.
Lift the power-supply unit off the chassis.
Installing the power-supply unit
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
WARNING:
The cables and ports on the back of the power-supply unit are color-coded to indicate the different power
wattage. Ensure that you plug in the cable to the correct port. Failure to do so may result in damaging the power-supply
unit and/or system components.
About this task
The following images indicate the location of the power-supply unit and provides a visual representation of the installation procedure.
38
Removing and installing components