No ATI currently in here. And with the new PSU put in yesterday, I had my 1st screen wobbly just as I reach this page! So we can eliminate power I think…
Given that I had one stress test error, even if it wasn’t reproducible, that suggests the gfx issue might be a side effect of something else, rather than the problem in itself. I’m wondering if a clean install would be any help but I can’t be arsed with a full reinstall, plus even a test install I’ll need to run for weeks since this is so unpredictable.
Think I’ll double check mobo drivers, re-flash the bios and downclock the ram a bit and see if that helps. The ram is in its spec, but above that officially supported by Intel I think.
Edit: a “load failsafe defaults” seems to have fixed some funnines I saw in the bios earlier, so I wont re-flash. Lowered ram speed will see if that helps.