Owners Manual
Table Of Contents
- Precision 3640 Tower Service Manual
- Working on your computer
- Technology and components
- Major components of your system
- Disassembly and reassembly
- Recommended tools
- Screw list
- Chassis rubber feet
- Cover
- SD card—optional
- Bezel
- Hard drive
- PSU hinge
- Graphics card
- Memory module
- Speaker
- Coin cell battery
- Power supply unit
- Optical drive
- WLAN module and SMA antenna
- IO panel
- Solid state drive
- Power button module
- Heatsink assembly
- Voltage regulator heat sink
- Front fan
- System fan
- Optional IO card
- Processor
- Intrusion switch
- System board
- Troubleshooting
- Getting help and contacting Dell
- Cable cover
- Dust filter
Removing the system board.....................................................................................................................................90
Installing the system board....................................................................................................................................... 92
System board layout................................................................................................................................................... 96
Chapter 5: Troubleshooting.........................................................................................................98
Real-Time Clock (RTC Reset)........................................................................................................................................98
System diagnostic lights..................................................................................................................................................98
Diagnostic error messages..............................................................................................................................................99
System error messages..................................................................................................................................................102
Recovering the operating system................................................................................................................................102
Flashing BIOS (USB key)............................................................................................................................................... 103
Flashing the BIOS............................................................................................................................................................ 103
WiFi power cycle..............................................................................................................................................................103
Chapter 6: Getting help and contacting Dell...............................................................................105
Appendix A: Cable cover ............................................................................................................107
Appendix B: Dust filter .............................................................................................................. 113
Contents
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