New
#11
I managed to find a good price for a motherboard, a GA-990FXA-UD3 to be precise. It will arrive later on this week. So I will install that in a few days when it arrives, making sure to reapply the thermal paste and that the socket fits correctly, and report back if the problem has gone away then. Thanks for all your help so far! If I don't get any restarts after I try the new motherboard I will mark this thread as solved.