16 tRAS instead of 20 sure could have caused all this! Lets say I really hope it did 
Though the apparent cold boot issues seem to be out of line then, you'd think it would crash no matter cold or warm. I take it you've been running the memory at 1333Mhz from the start?
Let us know how everything runs after a couple of days.
Hi guys... its back! ...*sigh*
So, to bring you up to date. It had been running ok until today, so a couple of days if that. When i noticed it had BSOD'd I went back into BIOS and checked the settings, by accident I had set it to Expert and only set ONE channel (the first, A is it?) to 7-7-7-20, so i changed the other 2 accordingly, and retried, it didnt last anywhere near as long. changed Expert to Quick, same thing. So i then ran it slower at 8-8-8-24, this gave the BSOD on booting up.
After this, I thought (re-reading your posts), I'll try the voltage now, so running all at 7-7-7-20 I moved the RAM voltage to 1.64 with an increased QPI/vtt @ 1.2, then at 1.4 with no luck. Reset everything and moved the tRFC to 88, as suggested no luck, in addition to trying a looser latency (8-8-8-24).
I'm back at square I think and at the point where I cant attain the (bad) stability before, so I'm now running 2 sticks on 'Auto' detect setting like I was origionally. I'm looking into other RAM asap.
Many Thanks,
Dan
EDIT: Been trying to look for Corsair's own QVL and no luck, any links? only one i found was by Crucial
http://www.crucial.com/upgrade/compatible-memory-for/Giga-Byte/GA-X58A-UD5/list.html
