HP EliteBook 8540p Notebook PC HP EliteBook 8540w Mobile Workstation Maintenance and Service Guide

5. Remove the two Phillips PM2.0x3.0 screws (4) from the hard drive bay.
6. Turn the computer right-side up, with the rear toward you.
7. Remove the two Torx T8M2.5×6.0 screws (1) from the top of the top cover.
8. Close the computer and turn the rear toward you.
9. Remove the two HM2.5×6.0 screw locks (2) that secure the top cover to the computer.
Component replacement procedures 89