There's a kernel bugfix to try and deal with NVMe devices dropping out:

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.12.y&id=bc255fec6fd7300b56c7adad5cb8482cd7cac81a

This will be included in the kernel used for the next 7.2 public release, whether that will be -beta.3 or -rc.1, so it may be worth retesting once that's out.

so small update hasn't crashed besides the one crash above since using my old 980 a+ the 990 plus again

the 990 pro is in the server just unassigned, has not "disconnected". at some point ill switch back to the 990 pro and see if it disconnects again,

one thing i felt like i noticed is that the 990 pro wasn't "in perfectly" like a bit of the gold for the socket was exposed so maybe after a bit of heat + vibration it caused a quick dc. so i shoved it in harder. as my mobo has these spring locks instead of screw locks.

So if i switch back and it doesn't disconnect again its 100% poor design for the nvme holder on the mobo/ user error (i guess?).

If it does disconnect again its 100% some weird compatibility issue/issue with this 990 pro nvme and something else in the server

Ah cool, ill also try 7.2 with it and report back when its out

7.2.0-beta.3 should be out very soon, last I heard, maybe even later this week, and it will include that kernel fix.