Owners Manual
Table Of Contents
- Precision 3640 Tower Service Manual
- Contents
- Working on your computer
- Technology and components
- Major components of your system
- Disassembly and reassembly
- Recommended tools
- Screw list
- Cover
- PSU hinge
- Bezel
- Memory module
- Hard drive
- Optical drive
- Graphics card
- WLAN module and SMA antenna
- IO panel
- Power button module
- Speaker
- Intrusion switch
- Solid state drive
- Coin cell battery
- Power supply unit
- Front fan
- Top fan
- Heatsink assembly
- Voltage regulator heat sink
- Processor
- System board
- Troubleshooting
- Getting help and contacting Dell
- Optional IO card
- Cable cover
- Dust filter
- Chassis rubber feet
Steps
1. Hold the coin cell battery with the "+" sign facing up and slide it under the securing tabs of the connector on the system
board.
2. Press the battery into the connector until it locks into place.
Next steps
1. Close the psu hinge.
2. Install the cover.
3. Follow the procedure in after working inside your computer.
Power supply unit
Removing the power supply unit
Prerequisites
1. Follow the procedure in before working inside your computer.
2. Remove the cover.
3. Open the PSU hinge.
4. Disconnect the power supply cables and close the PSU hinge.
About this task
The following images indicate the location of the power supply unit and provides a visual representation of the removal
procedure.
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Disassembly and reassembly