Remove The I/O Board With Cable - Lenovo Yoga C740 Series Hardware Maintenance Manual

Figure 9. Remove the conductive tape
Step 4. Remove the thermal module.
Figure 10. Remove the thermal module
Go to
https://support.lenovo.com/partslookup
part:
Thermal module

Remove the I/O board with cable

Make sure the following FRU (or CRU) have been removed.
"Remove the lower case" on page 26
"Remove the battery pack" on page 27
"Remove the RTC battery" on page 28
to look up the Lenovo part number of the following replacement
.
Chapter 4 Removing a FRU or CRU
31