HP ProBook 450 G4 Notebook PC and HP ProBook 455 G4 Notebook PC - Maintenance and Service Guide

Power connector and cable
Description Spare part number
Power connector and cable 828949-007
Conductive fabric (for use with the power connector cable) 914604-001
Before removing the power cable, 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 following components:
a. Service door (see Service door on page 33).
b. Optical drive (Optical drive on page 34)
c. WLAN module (see WLAN/Bluetooth combo card on page 40)
d. WWAN module (see WWAN module on page 42)
e. Hard drive (Hard drive on page 36)
f. Keyboard (see Keyboard on page 45)
g. Top cover (see Top cover on page 52)
h. Battery (see Battery on page 66)
i. Display assembly (see Display assembly on page 82)
Remove the power cable:
1. Remove the cable from the clips in the computer (1).
Component replacement procedures 89