HP ProBook 450 G3 Notebook PC - Maintenance and Service Guide

Function board
Description Spare part number
Function board 828419-001
Function board cable (included in Cable Kit) 828418-001
Before removing the function board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet, and
then unplugging the AC adapter from the computer.
4. Remove the battery (see Battery on page 34).
5. Remove the following components:
a. Service doors (see Service doors on page 35)
b. Optical drive (Optical drive on page 37)
c. Hard drive (Hard drive on page 39)
d. Keyboard (see Keyboard on page 48)
e. Top cover (see Top cover on page 53)
f. USB/audio board (see USB/audio board on page 61)
Remove the function board:
1. Position the top cover upside-down.
2. Disconnect the cable from the connector on the function board (1).
3. Remove the Phillips PM2.0×3.0 screw (2) that secures the board to the top cover.
Component replacement procedures 63