Dell Vostro 3901 - System Board Replacement

Removing the System Fan
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the cover.
3. Follow the steps to remove the system fan:
a. Disconnect the fan cable from the system board.
b. Remove the screws that secure the system fan to the computer.
c. Push the system fan inwards and remove it from the computer.
Installing the System Fan
1. Place the fan on the computer.
2. Replace the screws to secure the fan to the computer.
3. Connect the fan cable to the system board.
4. Install the cover.
5. Follow the procedures in After Working Inside Your Computer.
Removing the System Board
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the:
• cover
• bezel
• optical drive
• hard drive
• heatsink
• processor
• memory
• expansion cards
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