What happens if I move an NVME with OS on it to another NVME slot?

Testing and installing a Gen4 NVME SSD on a Gen3 Motherboard This includes Unboxing

2 NVMe drive of 2280 sizing It has 4x PCIe

will a gen 4 ssd work in a gen 3 slot 2 slot), a Gen 3 drive will do just fine Leave the more expensive drives to those who are trying for a future-proof build, or who regularly

willy wonka and the chocolate factory slot machine I have mine in the M2_1 slot and the Samsung 980 pro worked right away I had a WD black in M2_1 slot and sometimes it booted at Gen3 x4 and