Dell Precision 7920 Tower Owners Manual - Page 18

Power supply unit (PSU), Removing the PSU, Installing the PSU, Side cover, Removing the side cover

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Power supply unit (PSU) Removing the PSU 1. Follow the procedure in Before working inside your computer. 2. Disconnect the power cable from the system. 3. Press the PSU release latch [1] and slide the power supply away from the system [2]. NOTE: If the PSU cannot be removed then remove the right side cover of the system and check if the PSU is secured with a screw. Installing the PSU 1. Slide in the power supply unit to the PSU slot on the system. 2. Connect the power cable to the system. 3. Follow the procedure in After working inside your computer Side cover Removing the side cover 1. Follow the procedure in Before working inside your computer. CAUTION: The system will not power on while the side cover is off. Also, the system will shut down if the side cover is removed while the system is on. 2. To remove the side cover: 3. Press the latch 18 Removing and installing components

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Power supply unit (PSU)
Removing the PSU
1.
Follow the procedure in
Before working inside your computer
.
2.
Disconnect the power cable from the system.
3.
Press the PSU release latch [1] and slide the power supply away from the system [2].
NOTE:
If the PSU cannot be removed then remove the right side cover of the system and check if the PSU is secured
with a screw.
Installing the PSU
1.
Slide in the power supply unit to the PSU slot on the system.
2.
Connect the power cable to the system.
3.
Follow the procedure in
After working inside your computer
Side cover
Removing the side cover
1.
Follow the procedure in
Before working inside your computer
.
CAUTION:
The system will not power on while the side cover is off. Also, the system will shut down if the side cover
is removed while the system is on.
2.
To remove the side cover:
3.
Press the latch
18
Removing and installing components