Owners Manual
Table Of Contents
- Dell Precision 7920 Tower Owner's Manual
- Contents
- Chassis
- Working on your computer
- Removing and installing components
- Screw size list
- Recommended tools
- Power supply unit (PSU)
- Side cover
- Air shroud
- Front bezel
- PCIe holder
- Intrusion switch
- Front system fan assembly
- Internal chassis speaker
- Hard disk drive and the Optical disk drive bezel
- Hard disk drive assembly
- NVMe Flexbay
- Front input and output bezel
- Front input and output panel
- Rear system fan
- Right side cover
- Hard disk drive and optical disk drive frame
- Slim Optical Disk Drive
- 5.25-inch optical drive
- Power distribution and fan control board
- Front HDD cable and fan assembly
- Fan bracket
- Graphical processing unit(GPU)
- Memory
- Coin cell battery
- Processor heat sink module
- System board
- RAID controller battery
- VROC module
- Technology and components
- System specifications
- System Setup
- Software
- Troubleshooting
- Contacting Dell
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
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Removing and installing components