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
Disassembly and reassembly
Recommended tools
The procedures in this document require the following tools:
● Phillips # 1 screwdriver
● Small flat blade screwdriver
Screw list
The following table provides the list of screws that are used for securing different components to the computer.
Table 3. Screw list
Component
#6-32x1/4'' M2x2.5 M3X3 M2X3.5
Power supply bracket 2
Power supply unit 4
Heat sink blower (95 W heat sink solution) 3
System-fan bracket 1
System board 8
IO panel 1
Security-lock metal bracket 2
Solid-state drive (SSD) card 1
Optical drive bracket 1
Optional IO card 2
WLAN card and SMA antenna module 1
4
20 Disassembly and reassembly