HP ZBook 15u G3 Mobile Workstation HP EliteBook 850 G3 Notebook PC HP EliteBook 840 G3 Notebook PC - Maintenance and Service Guide

b. After you remove the PM2.5×5.0 screws (1), remove the 1 PM2.0×7.0 screw (2).
– or –
15” computers
a. Remove the 11 Phillips PM2.5x5.0 screws in the following order.
Component replacement procedures 37