Originally Posted by veedubfreak
Ok i'm going to save you a LOT of headache. When you first get into the bios, press ctrl-f1. This will open up the extra options in the bios. Next, set the memory frequency to 2.0, you might think its not there, but it is, its just in the wrong order. It goes 2.5 > 3.0 > 2.0. This will set your memory to run synchronous with your FSB. Next set the voltages to this.
CPU = 1.35v
FSB = +.1V
Memory = +.2V
Save your settings, reboot and keep an eye on temps. Keep in mind all of these settings assume you have a G0 stepping version of the q6600. If so, you should be able to run 3.6ghz at these settings. BUT if you want orthos/prime stability, you are going to have to boost the voltage a bit more. If you have any other questions shoot me a pm.
FYI i just replaced my ds3r with the 680i board for SLI so i have 3 months experience playing with the ds3r
The CPU voltage or better known as the "Vcore" is the main voltage of your CPU. This is what gives more juice to your CPU to let it overclock higher, but at the same times adds a great increase in power consumption. As long as temps are safe, the Vcore on the next chips is safe until around 1.55 I would suggest. Anything higher, even if temps are low will slowly deteriorate the chip faster I would think. However on a Quad even with a Tuniq there is no way you will have safe temps at those volts.
The FSB voltage is a very weird option...i can't even explain it well myself other than to tell you to try all the different voltage options to see which offers the best stability.
The Northbridge/Southbridge voltage increases voltage on the NB/SB chips to offer stability on very high overclocks...most of the time on the new P35 boards unless you are racking up a very high overclock you won't have to touch it, however it never hurts to add a +1 for extra stability is what I always do.
The RAM(memory as he said) voltage basically is self-explanatory. It adds extra voltage to your ram from the standard to increase the ram's overclockability, it will also help you get tighter timings. Find out what the standard voltage of your ram is and add however many to get to 2.1v which is mostly everyones safe amount.
Those are the basics