Remove The Heat Sink - Lenovo 100e Chromebook Gen 4 Hardware Maintenance Manual

Figure 23. Disconnect all cables
Step 2. Remove two screws. Then, remove the system board.
Figure 24. Remove two screws and the system board
Screw specifications
M2 × L4
Go to
https://support.lenovo.com/partslookup
replacement part:
System board

Remove the heat sink

Make sure the following FRUs (or CRUs) have been removed.
44
Lenovo 100e Chromebook Gen 4 Hardware Maintenance Manual
Number of screws
2
to look up the Lenovo part numbers of the following