need help gettin my oc better

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so i have a q6600 on a p5q deluxe tinkering on my first oc ive read several guides and found not too much help from them ive got my cpu to 3.52 and it was unstable dropped it down to 3.46 and it is running fine but from what ive read both the p5q and the q6600 have decent headroom on oc'ing and as its my first time im not to sure on changing voltages. can anybody give me any tips as the guides ive read have alternate titles for each voltages and im not too sure which to change any help would begreatly appreciated
 
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not to be an ass but like i said im new at this so how would i go about un restricting the ram there is like 20 titles in the bios starting with dram...
by the way i have 4gb (2x2gb) geil 800 mhz
 
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Well, the problem with 800 MHz RAM is that even at 1:1 ratio, you won't be able to go far over 400 MHz FSB (= 3.6 GHz).

In CPU-Z go to the 4th tab and check if the "FSB : DRAM" says anything but "1:1", if so that might be your problem right there.
 
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If the ratio is 4:5 that is almost absolutely your RAM failing on you.

If you plan to go to 4 GHz or beyond you might need new RAM, but as you can see your current RAM works stable even at 960 MHz (3.46 was stable), so you can probably hit 4 GHz even on your current ram, maybe even 4.2-4.3.

Well, to get 3.6 etc. stable, what you have to do is go into your BIOS and find some was to change the "DRAM to FSB" ratio, if it's either "4:5" or "[Auto]", make sure you manually set it to "1:1". With luck that should make your 3.5 OC stable.

Edit: A bit of clarification:

At an FSB of 391, your CPU speed would be 391 * 9 = 3519 MHz
Since the memory ratio is 4:5, we have to divide the FSB by that to get the memory's base speed: 391 / (4/5) = ~489
To get the actual memory speed, the base speed is dual pumped, so you have to multiply it by 2: 489 * 2 = 978 MHz.

So at that speed your 800 MHz memory is running at 978 MHz.

Were you to lower the multiplier down to 1:1, the base memory speed would be 391 / (1/1) = 391, when dual pumped results in: 782 MHz.

So you would be running your 800 MHz memory at 782 MHz, which will be stable.
 
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