Quote Originally Posted by kup View Post
OCCT is crashing even at stock for me... But I've lost my faith in in because when I try to run the auto test it says it needs 256MB but only has 2048 or something (I have 4GB) to use... Are there newer versions that play nicely with this chipset?
Try this beta
http://www.ocbase.com/download.php?fileext=beta
It corrected all memory allocation issues, the stress algorithm is the final also I think for now

Quote Originally Posted by Maglin View Post
I think some of these issues could be related to the EPU. I always fail OCCT ram test when I hit 26:07 remaining. It isn't BSODing just crashing according to OCCT. When I tired the D9's I was watching my VDIMM and had it set at 2.24v actual in probe. It would start to drop and when it hit 1.9v it would BSOD and reboot. This could be a hardware issue on the board with these new digital PWM voltage regulators, and now that we have an EPU that controls it from windows. Yuck.
Had exactly same issue on my P5B deluxe. I monitored the vcore with speedfan, and in OCCT RAM, it will fall progressively, and after 2h, it will drop till a crash. Problem solved with active cooling of mosfets here.

So, in your case, it looks like the Maximus PWM for the RAM are too hot, so get less efficient, hence your RAM droop after a while. You'll need a good ventilation of your motherboard parts/case, or drop your RAM timings/voltage