5.For 4540s models, remove the following screws that secure the top cover to the computer:
(1)4 rubber screw covers from the corners of the computer
(2)11 Torx T8M2.5×6.0 screws
70 Chapter 4 Removal and replacement procedures
5.For 4540s models, remove the following screws that secure the top cover to the computer:
(1)4 rubber screw covers from the corners of the computer
(2)11 Torx T8M2.5×6.0 screws
70 Chapter 4 Removal and replacement procedures