@evilmonkey
I recalled a similar case, it was a bad riser... the sata powered riser connector was broken and this BSOD the OS intermittently.
Anyways, you PSU should be good if you down clocked your 1080tis. Good luck troubleshooting.
Ok thanks I might try swapping out the riser. I did have both risers working perfectly well for 1 week but they were in seperate rigs. Both are powered directly to the PSU.
I suspect it might be something to do with the core clock settings I am using. Hard to tell seeing it only crashes after a long period of time. I have set them all back to zero to see if it works. Previously they were all running fine for a week. But moving to risers I may not be able to clock them as high?
sometimes that happens .
I have also seen 1080 ti's clock core at 250 for a month then never do over 225 for core on zec .
Since stability is king for me I do zec at 200 and no longer try to go higher.
most of my gear is at the solar array and driving 6 mile round trip to re-set the gear sucks