Dell OptiPlex 7770 All In One OptiPlex 7770 All-in-One Service Manual - Page 58

Power supply unit fan - PSU fan, Removing the power supply unit fan -PSU fan

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3. Install the following components: a) Base cover b) System board shield c) Back cover d) Stand 4. Follow the procedure in After working inside your computer. Power supply unit fan - PSU fan Removing the power supply unit fan -PSU fan 1. Follow the procedure in Before working inside your computer. 2. Remove the following components: a) Stand b) Back cover c) System board shield d) Base cover 3. To remove the PSU fan: a) Unroute the power supply cables from the retention clips in the PSU fan. b) Disconnect the PSU fan cable from the socket on the system board [1]. c) Remove the two (M3x5) screws that secure the PSU fan to the display assembly base [2]. d) Lift the PSU fan away from the chassis [3]. 58 Removing and Installing components

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3.
Install the following components:
a)
Base cover
b)
System board shield
c)
Back cover
d)
Stand
4.
Follow the procedure in
After working inside your computer
.
Power supply unit fan - PSU fan
Removing the power supply unit fan -PSU fan
1.
Follow the procedure in
Before working inside your computer
.
2.
Remove the following components:
a)
Stand
b)
Back cover
c)
System board shield
d)
Base cover
3.
To remove the PSU fan:
a)
Unroute the power supply cables from the retention clips in the PSU fan.
b)
Disconnect the PSU fan cable from the socket on the system board [1].
c)
Remove the two (M3x5) screws that secure the PSU fan to the display assembly base [2].
d)
Lift the PSU fan away from the chassis [3].
58
Removing and Installing components