Remove The Hard Disk Drive (Hdd) Cable - Lenovo Legion BoostStation Hardware Maintenance Manual

Figure 7. Disconnect the fan cable from the system board and remove fan
Go to https://support.lenovo.com/partslookup
part:
Fan

Remove the hard disk drive (HDD) cable

Make sure the dock has been pulled out from the dock shell.
Step 1. Disconnect the HDD cable from the HDD and the system board, then remove the HDD cable.
Figure 8. Remove the HDD cable
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Hardware Maintenance Manual
to look up the Lenovo part number of the following replacement