Yes I'm aware of this, but it passed 1024k every time when I was blend testing with different CPU GTL combinations (that was over 25 times and always failed during the first two small FFT tests). I then leave it off over the weekend, come back and run the test with the exact same settings, volts etc, and the most succesful CPU GTL setting (so far) - then 1024k fails within 5-10 minutes. This is why it's so hard for me to tune this thing - it's simply not playing ball the way it should.
I've tried another restart and power cycle, and it's still failing at the same point - I've wasted so much time with this I'm tempted to at least RMA the board provided Arseus allow it, failing that I could hope that my new PSU (due to arive soon) could help the matter. If not I'll probably sell the board and try a gigabyte on for size. Sorry about these constant rantings, but It's really bugging me! I'm no noob to overclocking (since about 2000 and mainly spent time on the OCW forums) and I feel my experience is often enough to work out which settings need tweaking to get stable and get a good feel for how a motherboard operates.

Sorry, this isn't a dig at anyone taking the time to help me, it's always greatly appreciated, but I hope you see where I'm coming from!