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Figure 9. Disconnect the battery pack cable, loosen four screws in alphabetical order and 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 26
Step 1.
Disconnect the battery pack cable and fan cables from the system board. Then, remove four
screws and remove the fans.
Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.
Figure 10. Disconnect the cables, remove four screws and then remove the fans
32
Lenovo ThinkBook Plus Gen 4 Hardware Maintenance Manual
to look up the Lenovo part numbers of the following
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