Quote Originally Posted by seymourp View Post
Thanks Sweep, after I read your reply, I looked at the memory - it says 7 7 7 20 1T. I tried both 9-9-9-24-2T and 7-7-7-20-1T settings - still freezes.

I noticed this morning that the core clock reading (on the Nvidia monitor) seems to cycle between 3167 and 2000, would this be a sign that the cpu is developing a fault?

Edit, that cycling seems to be caused by speedstep - I have switched it off. System still freezes though.

Manually set the linked and synced speed you want and set all memtimings to auto and see what it gives you.

Also do you have loadline calibration enabled? If so this has been known to give random freezes on desktop when it drops the voltage due to inactivity/low load.