2019 15″ Lenovo Thinkpad P53 (Q T1000) [9th,6C,H] + RTX 3070 @ ...
I have read that whenever you plug in a M.2 SSD, it either disables Sata Ports (if its M.2 Sata) or a Pcie Slot ( if it is NVME).
Phân Biệt Ổ Cứng SSD M.2, SATA Và PCIe
2x M.2 slots (2280 + 22110, M keys). Acer Predator 15 (G9-593), 1x 2280 SATA ... M.2 PCIe NVMe SSD slot, M-edge key, 2280. Lenovo Yoga 520 (14"), PCIe NVMe ...
Can You Put M.2 SSD in PCIe Slot? - PC Guide 101
And if you connect your NVMe M.2 SSD to a M.2 SATA slot, it will not work since the M.2 SATA slot does not support the high-speed NVMe connection.