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

Description Spare part number
AMD A8-7100 processor; UMA graphics memory
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Without Windows 8.1 773074-001
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Windows 8.1 Professional 773074-501
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Windows 8.1 Standard 773074-601
AMD A6-7050B processor; UMA graphics memory
●
Without Windows 8.1 773073-001
●
Windows 8.1 Professional 773073-501
●
Windows 8.1 Standard 773073-601
Before removing the system board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off 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 first 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 43).
5. Remove the following components:
a. Service doors (see
Service door on page 44).
b. Hard drive (see
Hard drive on page 46)
c. Optical drive (see
Optical drive on page 50)
d. Keyboard (see
Keyboard on page 56)
e. Top cover (see
Top cover on page 64)
When replacing the system board, be sure to remove the following components from the defective system
board and install on the replacement system board:
●
Memory modules (see Memory modules on page 48)
●
WLAN/Bluetooth module (see
WLAN/Bluetooth combo card on page 52)
●
WWAN module (see
WWAN module on page 54)
Remove the system board:
1. Position the computer upright with the front toward you.
86 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts