Dell Vostro 330 (Early 2011) - Manual (Page 31)

System Board Shield
10
Removing The System Board Shield
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the cover .
3. Remove the front stand .
4. Remove the single screw along the bottom edge of the system board shield.
5. Remove the screws that secure the upper part of the system board shield.
6. Carefully tilt the system board shield and place it next to the computer.
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