Lenovo 5106 Maintenance Manual page 92

8. Remove the four screws that attach the microprocessor fan assembly to the main bracket.
9. Remove the optical drive and the rear I/O assembly to gain access to all the 11 screws that hold the LCD
panel. See "Removing the optical drive" on page 82 and "Removing the rear I/O assembly" on page 95.
10. Remove all the 11 screws that secure the main bracket to the front bezel.
11. Remove the four screws that attach the LCD panel to the main bracket.
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ThinkCentre Hardware Maintenance Manual