6. Discrete models: 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 components (1) and on the heat sink areas (2) that service
them.
Reverse this procedure to install the heat sink.
System board
To remove the system board, use these procedures and illustrations.
Table 5-12 System board descriptions and part numbers
Description Spare part number
System board (includes processor):
All system boards use the following part numbers:
xxxxxx-001: Non-Windows operating system
xxxxxx-601: Windows 10 operating system
Models with UMA graphics memory: M45033-xx1
● Intel Core i7-1165G7 M50448-xx1
● Intel Core i5-1135G7 M50447-xx1
● Intel Core i3-1125G4 M50446-xx1
● Intel Core i3-1115G4 M50445-xx1
● Intel Core i5-1035G1 M48467-xx1
● Intel Core i3-1005G1 M48466-xx1
● Intel Pentium Gold 7505 M50451-xx1
● Intel Pentium N6000 M50454-xx1
● Intel Pentium Silver N3050 M50452-xx1
● Intel Celeron N4500 M50455-xx1
48 Chapter 5 Removal and replacement procedures for authorized service provider parts
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