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
5. Close the PSU hinge.
6. To remove the power supply unit (PSU):
a. Disconnect the hard-disk power cable [1].
NOTE: There could be up to four hard-disk power cables depending on the quantity of hard-disk drive installed.
b. Remove the two #6-32x1/4'' screws that secure the power-supply bracket to the chassis [2] and lift the power-supply
bracket from the system [3].
c. Remove the four #6-32x1/4'' screws that secure the power-supply unit to the chassis [4].
d. Lift the PSU off the chassis [5].
Disassembly and reassembly
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