[SOLVED] Disabling m.2 slots from bios

Jan 12, 2022
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Hi,
is there any motherboard out there that allows the user to disable specific m.2 slots from bios and thus making the drives on those slots not show up on, say, another os?

Right now I'm using m.2 pcie slot adapters and disabling the slots from a switch, not a feature many if any motherboard today has and it's much less convenient than doing it from bios.

So far I've not been able to find any board that can do this.
 
Solution
I've seen X570 boards, that require setting PCIE_X16 slot to x8 mode operation to enable two onboard M.2 slots.
So - if you set PCIE_X16 slot to x16 operation, this effectively disables two M.2 slots.