HP ProBook 450 G3 - Heat sink assembly

2. Remove the Phillips PM2.5×3.0 screw (1) that secures the board to the computer, and lift the cable side
of the board.
3. Turn the board upside down (1), and then disconnect the cable from the board (2).
Reverse this procedure to install the card reader board.
66 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts