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Help with overclocking? VERY new to this.

post #1 of 4
Thread Starter 
Hi all, thanks for the help first of all..

I am trying to overclock a Intel CD 6750 2.66

My motherboard is a Gigabyte p35-s3g

Anyone have any step by step instructions? I have looked everywhere, even that tomshardware site.. He shows you how to do a CD, but with my motherboard I cannot figure it out.

What happens is my computer just starts up then turns off a couple times until it goes back to standard settings... I am not sure what I am doing wrong here.

Thanks!
post #2 of 4
http://www.overclock.net/intel-cpus/...ing-guide.html

...right in front of you.
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Time Sink
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post #3 of 4
How much of an overclock did you give it? I hope you didn't just give it a massive OC right away.

You probably aren't running enough voltage to the CPU (vcore) for the clock speed you have it set on.

Try increasing the vcore by one or two notches and see what happens.
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post #4 of 4
The 5 things that matter most in an overclock on any motherboard, are
1. FSB which can be in a number that is quad pumped to get your fsb or a number that is the speed of your actual fsb, ie. my processor is stock at 800 fsb, or 200mhz quad pumped to get the actual fsb. this is where you start your processor I believe is a 1333 fsb stock so your fsb should either be 333 or 1333 depending on what your motherboard goes by, start by increasing this to say 375 or 400 which will equate to 1500 mhz or 1600mhz fsb.
2. Next thing to set is you Multiplier, I like to start out low because generally a higher FSB will yield a faster overlock and lower ram multipliers, for a 3.00 overclock on my cpu I chose a 9 multiplier at a 333mhz fsb to achieve 3 ghz, you can try either 7 or 8 your choice, I would start with 8.
3. Next is your Vcore which is crucial as it is the amount of voltage going to your cpu that allows it to operate, to little will cause instability, to much will cause excessive heat and wear, dont go above 1.5v with a C2D processor, start out at 1.4v and work your way down to instability then move it back up a couple notches to assure stability. And
4. your Pci express frequency, set this to 100 as if you keep it on auto your pci express clock will increase with your front side bus and potentially burn out your gpu.
5. and lastely your ram frequency, its best to start out at or below your rams rated frequency, ie. pc2-6400 is 800mhz so keep the ram at or below that speed to keep it stable, you can overclock your ram later if you desire.

This is by no means the only things that you may encounter or may need to tweak in order to reach total stability, in higher oc's you may need to adjust fsb voltage, ram voltage and even loosen ram timings but to get you started those 5 things should be all that you will need to adjust initially. Good luck!
btw I apoligize for the drawn out post however I hope it helps you, I also recommend reading the guide as it will show you more ways to overclock, like starting out at a smaller fsb and a larger multiplier, either way it is a very valuable resource, I recommend bookmarking it!
Edited by Mattb2e - 7/9/08 at 9:14pm
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