Thanks guys, well I reseated the RAM, took out 1 stick and set the VCore volts and the muiltiplier (or at least what I thought was the muiltiplier) to the settings you suggested and now the "overclocking Failed!" error doesnt pop up at the start but once I get into windows everything indicates that my cpu is still only at 3.30 and RAM at 1333mhz.
When I first bought the RAM there were 4 sticks but my H80 took up so much room I could only squeeze in 3. They are in the correct slots (the red slots 2nd and 4th on the right of the board). This is what I put on my 6990: Accelero Twin Turbo 6990 · VGA · Cooling · ARCTIC
And this should be much cooler than the stock fan, and the tests do say it does(Furmark at start of benchmark 45c at end 67c.
Still cant really overclock anything or itll says the settings are where I left them in bios but no evidence or performance boost.