Dell Vostro 260 (Mid 2011) - Manual (Page 41)

System Board
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Removing The System Board
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the cover .
3. Remove the memory .
4. Remove the fan .
5. Remove the processor .
6. Remove the expansion card .
7. Remove the WLAN card .
8. Disconnect and un-thread all the cables connected to the system board.
9. Remove the screws that secure the system board to the computer.
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