B450 which sata port to use for boot drive to avoid conflict with new nvme drive

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Have an asrock b450 pro 4 (atx) motherboard and I got a new nvme drive but when I plug it in I see nothing in disk. Have disconnected all other drives and wondering which sata drive I should use for boot drive to avoid nvme conflict. My bios states "sata port 3/4 share bandwidth with m_2_1 (ultra M.2 slot)" I have provided a screenshot of the board manual and shown where I have my boot drive connected via nvme (shown circled in yellow) and wondering if I am supposed to use the SATA port circled in red. Thanks! Drive is a wd black sn770 (2tb)

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