

Possible something on your motherboard has PCIe lanes that are dedicated to GPU when it’s slotted, otherwise they can be used for other devices?
For example here’s a post about m.2 slots that, when used, affect the PCI on a particular board. May be worth checking your boards manual to see if there’s something similar.
The answer not only seemed a HUGE disappointment, but a bit baffling. The pdf manual says if you occupy that 5th m.2 slot, which is the Gen 5 one, the Pci-E 1 slot is automatically downgraded to 8x. This I thought would be unacceptable if running a behemoth like the RTX 4090 I eventually plan to get, as it requires a lot of power and bandwidth.
If I recall correctly it’s important to be running ECC memory right?
Otherwise corrupter bites/data can cause file system issues or loss.