I'd almost given up on my GAX38DQ6 as it just seemed a useless board to OC no matter what I did, I was about to sell it on (not now)

Finally seen what was in front of me all the time the D setting in the memory section, I'd been using A all the time, as soon as I used the D option the board is finally flying.

Currently running my Q6600 GO B stepping @ 3.60GHz 400x9 2.66D memory 1066 5.5.5.13 timings passed SuperPi 32M without a problem and PCMark05, will do some more testing tomorrow now its started to work for me, if all ok then this should be my 24/7 setting.

Got it to boot into Windows at 444x9 and ran SP32M but then second time I did the test it crashed and now won't pass the test again on same settings, didn't want to go too crazy on the voltages yet but I'm pretty sure I can get it stable @4GHz at least for testing.