Remove The I/O Board Module; Step 1. Remove Two Screws And Then Open The Hinge - Lenovo V14 Gen 3 Hardware Maintenance Manual

Figure 56. Disconnect the fan cable from the system board
Step 3. Remove three screws and then remove the fan.
Figure 57. Remove three screws and then remove the fan.
Screw specifications
M2 x L5
Go to https://support.lenovo.com/partslookup
part:
Fan

Remove the I/O board module

Make sure the following FRU (or CRU) has been removed.
"Remove the lower case" on page 54
"Remove the fan" on page 61
Step 1. Remove two screws and then open the hinge.
62
Hardware Maintenance Manual
Number of screws
3
to look up the Lenovo part number of the following replacement