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. Lift the side of the PCIe holder to release it from the graphics card and slide the holder out from the slot in the chassis.
2. Remove the two #6-32x1/4 screws that secure the power-supply bracket to the chassis and lift the power-supply bracket
from the system.
3. Remove the four #6-32x1/4 screws that secure the power-supply unit to the chassis and lift the PSU off the chassis.
Installing the power supply unit
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
The following images indicate the location of the power supply unit and provides a visual representation of the installation
procedure.
Disassembly and reassembly
55