Hey everyone, I a few days ago purchased this board along with other things. I got the system setup and for some reason, The machine randomly restarts by itself. no blue screen or anything. It even does it WHILE running memtest. It got as far as 2 passes and it did not fail. HDD passes. I have it updated to latest bios and still same issue. I stripped it bare and it still has an issue. I don't know what I am doing wrong. Here is my setup.
Intel i5 750 (stock)
Kingston DDR3 pc1333 ram 4gb (2x2gb)
WD RE3 250GB x2 in RAID-0
Antec 900 case
Antec True-Power Quattro 850
Nvidia Geforce 8800GTS 320 x2 (SLI x8) superclocked.
I had the same problem myself, couldnt get anything to work, more frustratingly couldnt find a pattern to the problem. Found this http://www.alternativerecursion.info/?p=797, which summed up my situation, changed to kingston memory modules and i`ve not had a reboot since. Theres a few other threads on here about random crashes etc which might help you out. (most to do with the turbo boost / speed step settings). IIWY id check your exact memory part numbers are on here: http://developer.intel.com/technology/memory/ddr/valid/ddr3_nonecc_udimm_results.htm.
Hope that helps you.