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
Installing the power supply unit
Steps
1. Insert the PSU into the PSU slot and slide it towards the back of the computer until it clicks into place [1].
2. Replace the four #6-32x1/4'' screws to secure the PSU to the computer [2].
3. Place the power supply bracket [3] and tighten the two #6-32x1/4'' screws to secure the PSU to the computer [4].
4. Connect the hard drive power cable [5]
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Disassembly and reassembly