- Notes, cautions, and warnings
- Working on your computer
- Technology and components
- Removing and installing components
- Recommended tools
- Screw size list
- Tower motherboard layout
- Side cover
- Bezel
- Front panel door
- Hard drive assembly—3.5-inch and 2.5-inch
- Optical drive
- M.2 PCIe SSD
- SD card reader
- Memory module
- Expansion card
- Optional VGA module
- Power supply unit
- Intrusion switch
- Power button
- Speaker
- Coin cell battery
- Heat sink fan
- Heat sink
- Processor
- System fan
- System board
- Troubleshooting
- Getting help