Figure 14. Loosen six screws and then remove the heat sink
Go to
https://support.lenovo.com/partslookup
replacement part:
Heat sink
Remove the fans
Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 28
"Remove the heat sink" on page 35
Step 1.
Disconnect the fan cables from the system board. Remove four screws and then remove the fans.
Figure 15. Remove the fans
36
Lenovo ThinkBook 16p Gen 3 Hardware Maintenance Manual
to look up the Lenovo part numbers of the following