bubbagumper6
New Member
I plugged it in and the monitor just said no signal...
if the external monitor showed the artifacts, then its 100% that its your GPU(s) at fault.
May be a motherboard problem, but its way more likely that your GPU(s) are on the way out.
try one GPU at a time. If one is failing, it will artifact the picture, no matter how good the other one is.