7.
For 4540s models, remove the following screws that secure the top cover to the computer:
(1)
2 Phillips PM2.0×2.5 screws from the optical drive bay
(2)
3 Phillips PM2.0×2.0 broadhead screws from the battery bay
8.
For 4440s/4441s models, remove the following screws that secure the top cover to the
computer:
(1)
3 Phillips PM2.0×2.5 screws from the optical drive bay
(2)
2 Phillips PM2.0×2.0 screws from the battery bay
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Chapter 4 Removal and replacement procedures