I just built my new computer but for some reason it randomly freezes. One time it happened while browsing the internet. Another time while playing bf3 for a few minutes. And another time when I left my computer and returned to it. No bsods just freezes, keyboard and mouse stop working and requires a manual restart/shutdown.
I ran prime95 and fur mark and monitored temps so it's not a overheating problem or gpu failure. I now think it's a memory problem but I'm not sure.