HP ProBook 450 G2 Notebook PC HP ProBook 455 G2 Notebook PC Maintenance and Service Guide

3. Remove the 11 Torx T8M2.5×3.0 screws that secure the top cover to the computer.
4. Position the computer upright and open it as far as possible.
5. Disconnect the following cables from the system board:
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(1): Card reader board cable
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(2): Power button board cable
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(3): Function board cable
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(4): Speaker cable
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(5): USB board cable
6. Remove the 4 Torx T8M2.5×6.0 screws (6) from the top of the computer.
7. Pry the top cover off the computer to disengage it.
NOTE: Begin by attempting to pry the top cover loose near the optical drive.
Component replacement procedures 65