- Notes, cautions, and warnings
- Chassis
- Working on your computer
- Removing and installing components
- Screw size list
- Recommended tools
- Side cover
- Power supply unit (PSU)
- Front bezel
- Hard Disk Drive bezel
- Hard disk drive assembly
- NVMe Flexbay
- Slim Optical Disk Drive
- Front input and output bezel
- Optical Disk Drive
- 5.25 inch ODD bracket
- Front input and output panel
- Input and output panel bracket
- Intrusion switch
- Internal chassis speaker
- Air shroud
- Memory
- Expansion card
- Coin cell battery
- Center System fan/HDD fan
- Fan bracket
- PCIe holder
- Heat sink and CPU fan assembly
- Processor
- Front system fan
- VROC module
- System board
- RAID controller battery
- RAID controller battery bracket
- Technology and components
- System specifications
- System Setup
- Software
- Troubleshooting
- Contacting Dell
Dell Precision 5820 Tower Owner's Manual
Removing the RAID controller battery
- Follow the procedure in Before working inside your computer.
- Remove the side cover.
- To remove the RAID controller battery:
- Disconnect the RAID controller battery cable from the RAID controller card.
- Push the securing tab out to release the RAID controller battery.
- Lift and remove the RAID controller battery.
- Disconnect the RAID controller battery cable from the RAID controller card.
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