Remove The Heat Sink And Fan Assembly; Remove The Wi-Fi Card - Lenovo Legion Y740 Series Hardware Maintenance Manual

Remove the heat sink and fan assembly

Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 33
"Remove the battery pack" on page 34
"Remove the Wi-Fi card" on page 44
"Remove the subwoofer (for Lenovo Legion Y740–17)" on page 47
Step 1. Disconnect the cable from the system board.
Figure 43. Disconnect the cable – Lenovo Legion Y740–15
Figure 44. Disconnect the cable – Lenovo Legion Y740–17
Step 2. Remove 6 screws.
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Hardware Maintenance Manual