Remove The I/O Board - Lenovo Legion Y7000 Series Hardware Maintenance Manual

Figure 29. Remove the 2 fans
Refer to "Major FRUs and CRUs" on page 24 to look up details about the following replacement parts:
Fans

Remove the I/O board

Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 30
"Remove the battery pack" on page 31
Step 1. Detach the I/O board connector.
Figure 30. Detach the I/O board connector
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Hardware Maintenance Manual