Oh yea! I forgot.... I had SetFSB problems.... it would error out at any random point from 333 to 342.... so in "desperation" I booted at 333 and went to 342 in one go. I'd already seen 342FSB, I knew the CPU was good for it..... It was fine at the MHz, I just couldn't increase it any more (without reboot)
Maybe if I rebenched I could get lucky and slowly increase to... something like 338 without error then jump to 343. I had 5L of LN2 to get this result, so couldn't mess around
Thanks for the comments guys!
LOl Honda.... ok..... if all goes to plan, i'm benching GTX580 on October 1st. Got a mate coming over to help pour coz it's eating a litre a minute