System Board - HP 255 G7 Maintenance And Service Manual

System board

NOTE: All system board spare part kits include replacement thermal material.
All system boards use the following part numbers:
xxxxxx-001: Non-Windows operating systems
xxxxxx-601: Windows operating system
Table 6-14 Spare part description and number
Description
AMD Ryzen 3-2200U processor
AMD A9-9425 processor
AMD A6-9225 processor
AMD A4-9125 processor
AMD E2-9000e processor
Before removing the system board, follow these steps:
1. Prepare the computer for disassembly
2. Remove the following components:
a. Optical drive (see
b. Bottom cover (see
c. Battery (see
d. Display (see
When replacing the system board, be sure to remove the following components (as applicable) from
the defective system board and install them on the replacement system board:
● WLAN module (see
● Memory modules (see
Heat sink (see
●
Remove the system board:
IMPORTANT:
1. Disconnect the following cables from the system board:
(1): Keyboard backlight cable
(2): Hard drive connector cable
(3): Speaker cable
(4): USB/card reader board cable
(5): Keyboard cable
(6): TouchPad button board cable
62 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
Optical drive on page
Bottom cover on page
Battery on page
Display assembly on page
WLAN module on page
Memory on page
Heat sink assembly on page
Make special note of each screw size and location during removal and replacement
(Preparation for disassembly on page
28)
31)
33)
53)
42)
35)
49)
Spare part number
L50003-xx1
L50004-xx1
L50005-xx1
L54792-xx1
L50006-xx1
27).