InCrYsIs,
I'm thinking you just have something set wrong.
http://www.tomshardware.com/fo...-29-overclocking-q6600
I'm sure I can dig up many more, but one is enough for me.
4x1GB can be done on that board even at 3.3ghz with your chip. The other guy can't get past 667. Which tells me he probably has his memory divider wrong or voltage low. Pull 2 modules and try it again. Still doesn't work? Lower the memory in the bios to 667. IF that works I'm guessing you need to change the divider or add voltage +.1 to cover 4 dimms.
Then again you've already ran here with 4 dimms correct? OR did you just add 2 with the quad perhaps?
Most importantly is your bios old? Update it maybe your q6600 is a stepping your bios is puking on. If the chip stepping came after your bios date upgrade. Whenever I stick in a new chip I upgrade first anyway. Worst case scenario I have to downgrade the bios, but at least I'm not running into "my old bios can't recognize my NEW cpu" syndrome. BTW it doesn't always look like this is the problem. It's not like the bios shouts it at you. You can seem to be fine but just crash. As a new overclocker you might not have any idea what a stepping is. So just update
Rather than talking about spending money, TROUBLESHOOT the problem. We know you have a good board, good modules (if you had all 4 running on that e6600), both chips run at the same FSB at 3ghz. This all adds up to something being set wrong. IF others are running Q6600 fine on this 975x board you either have a crap chip (not likely) or something isn't set correctly or the bios is old. All things being equal I'm betting BIOS. PERIOD. OK we might not know you have a good board/cpu/mem if you have know idea what ESD stands for. I'm not knocking you, if you ask me to fix a car I'll tell you I can't do anything more than change oil...LOL. But we need more info.