I actually got mine to 4.2GHz too but it was hot as all hell so I backed it down to 4GHz for my everyday 'putin
Man, all this talk of Q6600s (I was lucky and got an amazing deal so I had a Q6700) and Q9450s really brings me back... I managed to get both at a stable 4 ghz for every day use. Those were the days! Validated overclocks are linked in my sig for the non-believers. I had a 4.2 ghz OC on the Q9450 but I can't find the link.Yeah, thinking about it now your upgrade makes much more sense.
Was thinking about doing the q9450 from xeon 771 trick but was still not cost effective to do that and a pci sata 3 card and couldnt brind myself to do it on a mobo stuck at 8gb max ram.
Going to research doing cable sleeving and maybe look into shortening some of the wires but need different case first.
That'd be cool, pics!
Mine was water cooled. Stability was my issue because I was too scared to give it more voltage.