System Board - HP EliteBook 755 G5 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
Description
System board with AMD Ryzen 7 PRO 2700U processor
System board with AMD Ryzen 5 PRO 2500U processor
System board with AMD Ryzen 3 PRO 2300U processor
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 bottom cover (see
5. Remove the battery (see
6. Remove the keyboard (see
7. Remove the RJ-45 board and bracket (see
8. Remove the fan (see
When replacing the system board, be sure to remove the following components (as applicable) from the
defective system board and install on the replacement system board:
SIM card blank (only models without WWAN)
●
IMPORTANT:
and insert into the new system board.
● Solid-state drive (see
● Memory modules (see
● WLAN/Bluetooth module (see
WWAN module (see
●
● Heat sink (see
Remove the system board:
1. Position the computer upright and open as far as possible.
64 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
Bottom cover on page
Battery on page
Keyboard on page
Fan on page 62).
After removing the system board, remove the SIM card blank from the old system board
Solid-state drive (SSD) on page
Memory modules on page
WLAN/Bluetooth combo card on page
WWAN module on page
Heat sink assembly on page
34).
47).
43).
RJ-45 board with bracket on page
36)
37)
41)
49)
Spare part number
L21938-xx1
L21937-xx1
L21936-xx1
53).
39)