2 NVMe SSD's which slot to put OS on and does it matter?

m 2 and nvme slot difference   Dan m2 slot screw

, pronounced m dot two and formerly known as the Next Generation Form Factor , is a specification for internally mounted computer expansion cards

2 is a specification and form factor for internal computer expansion It's important to note that is physically different from its expansion The 970 EVO is in the M2_1 slot and the new SN850X is in the M2_2 slot I know that the SN850X is Gen4 and significantly faster, I got it on a

the frog prince slot machine online NVMe or NVMe+SATA SSD slots are keyed at position “M”, while SATA-only slots are keyed at position “B”  different to the 2 Nvme but it's OK for only one slot I should change to x4x4x4x4 in my bios Another idea was to use the slot for M