for the first day or two I was, I had ordered braided cables with out the daisy chain loop and was planning to wait on them, but yesterday I decided its an easy one to rule this out and put another cable in, no change (this was pre windows reset)You aren't powering the gpu with a single pci-e power lead are you?
AC Valhalla is known to be quiet buggy and given the last crash was game only, I will download cold war again today and see what happens,
failing that perhaps I try the beta bios from msi? starting to run out of ideas now