- Notes, cautions, and warnings
- Working inside your computer
- Removing and installing components
- Recommended tools
- Screw list
- Major components of OptiPlex 3000 Tower
- Side cover
- Front bezel
- 2.5-inch hard-drive assembly
- 3.5-inch hard-drive assembly
- Solid-state drive
- WLAN card
- Coin-cell battery
- Memory module
- Expansion card
- Slim optical-drive
- Slim optical-drive bracket
- Speaker
- Fan duct
- Power-supply unit
- Processor fan and heat-sink assembly
- Processor
- Communication card
- Power button
- Intrusion switch
- Optional modules
- Removing optional DisplayPort module
- Installing optional DisplayPort module
- Removing optional VGA module
- Installing optional VGA module
- Removing optional HDMI module
- Installing optional HDMI module
- Removing optional Serial module
- Installing optional Serial module
- Removing internal antenna
- Installing internal antenna
- System board
- Drivers and downloads
- BIOS setup
- Troubleshooting
- Getting help and contacting Dell