System Board - HP EliteBook 845 G7 Maintenance And Service Manual

3. Thoroughly clean the thermal material from the surfaces of the heat sink and the system board
components each time the heat sink is removed. Replacement thermal material is included with the heat
sink and system board spare part kits. The following illustration shows the replacement thermal
material locations.
Thermal paste is used on the system board component (1) and on the heat sink area (2) that services it.
Reverse this procedure to install the heat sink.

System board

To remove the system board, use these procedures and illustrations.
Table 6-12 System board descriptions and part numbers
Description
System board (includes processor):
All system boards use the following part numbers:
xxxxxx-001: Non-Windows operating system
xxxxxx-601: Windows 10 operating system
System board with integrated AMD Ryzen 7 PRO 4750U processor
System board with integrated AMD Ryzen 5 PRO 4650U processor
System board with integrated AMD Ryzen 3 PRO 4450U processor
Before removing the system board, follow these steps:
1. Prepare the computer for disassembly
2. Remove the bottom cover
3. Remove the battery (see
4. Remove the fan (see
56 Chapter 6 Removal and replacement procedures for authorized service provider parts
(Preparation for disassembly on page
(Bottom cover on page
Battery on page 43).
Fan on page 53).
33).
Spare part
number
M22244-xx1
M22243-xx1
M22242-xx1
33).