Another update: Windows recognises the card but with error 43, updated drivers and reflashed the card and still not working. Put it in the other slot and working but this doesn't help long term.
Update: I noticed it was recognising the second card slot... removing that card and putting it in the primary slot the nvidia driver isn't recognising the card, full bios reset to defaults, lspci is showing it but nvidia driver not working... thinking it is something to do with the slot itself since the card is not faulty?
After a random crash today on my unraid server, powered back up to find one of my graphics cards not being recognised. I've had this setup running for several months without any issues what so ever.
The nvidia plugin is showing only a single card, but lspci and unraids system devices shows both. nvidia-smi only shows one card. I have swapped in a spare card as I originally thought the card had failed but that's not the case. Bios update to the latest as of today also no success.
Some hardware background
Motherboard: Gigabyte Z590 UD AC (F2 original bios, updated to F5)
2 x nVidia Quadro K1200's
Unraid Version: 6.10.0-rc2 (has been working without any issues for several weeks on this version and rc1 prior to that)
Nvidia driver version: Was running latest (v495.44, tried downgrading to v470.82.00)
Nvidia plugin output (attached)
System tools/devices (attached card 1 and 2)
I'm not sure what caused the crash, this has happened twice in the last couple of weeks but this setup has been fine for months.
/proc/(etc) only shows a single card which is as per nvidia plugin.
Any suggestions would be greatly appreciated.