System Board - HP EliteBook 845 G8 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 5850U processor
System board with integrated AMD Ryzen 7 5800U processor
System board with integrated AMD Ryzen 5 PRO 5650U processor
System board with integrated AMD Ryzen 5 5600U processor
System board with integrated AMD Ryzen 3 PRO 5450U processor
System board with integrated AMD Ryzen 3 5400U processor
Before removing the system board, follow these steps:
Component replacement procedures
Spare part
number
M53483-xx1
M53480-xx1
M53482-xx1
M53479-xx1
M53481-xx1
M53478-xx1
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