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Overclocking Q9400 to 3.6GHz - Max Voltage??

post #1 of 22
Thread Starter 
Hi Everyone,

I just installed installed a Q9400 into my DFI Lanparty DK P35 T2RS mobo, and added a Xigmatek HDT cooler (with MX-2 thermal compound).

I can get to 3.2GHz no problem with ridiculously low temps and not much voltage.

But my goal is 3.6GHz.

So I jumped right to 450FSB (I know, I shouldn't do that). And then slowly increased the voltage. Now I am up to 1.312V for the core volatage (I am using a 333/667 ratio for the memory to keep it at 900MHz at 2.0V).

Is 1.312V too high? Intel says it can go up to 1.3625V, but this still seems high. Should I be adjusting other voltages?

Thanks in advance!
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post #2 of 22
Up to 1.3625v on your CPU is perfectly safe bro. Good luck. At some point you might have to raise the Northbridge voltage, but it doesn't seem like you need to at this point.
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post #3 of 22
Thats fine. Keep in mind, the vcore set in BIOS is a high mark. With standard vdroop, the vcore delivered to the CPU is a bit lower. So, even if you set the vcore in the BIOS to run the CPU at 1.3625v, chances are the CPU would still be running under the max recommended vcore as per Intel.
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post #4 of 22
1.36250 is fine to go up to, as long as the temps are fine, many people say that the max safest is actually 1.4v (wouldnt be unrealistic, because Intel would probably lower the max safe volts, so you have a guideline, and not to go extremely high). 1.4v should be the absolute maximum, but i think that you should be able to reach 3.6g with like a max of 1.35v? that should hopefully get you there.
     
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post #5 of 22
Thread Starter 
Cool. Thanks guys. My temps under load is high 30s low 40s. And no, my room is not cold. It is actually quite warm.

But cores 2 and 3 never seem to move. I adjusted RealTemp so the TJ Max is 100, but it just seems wierd that they never change. Did I not spread the themral compound enough or something?
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post #6 of 22
Maybe you got stuck temp sensors?You can test your sensors with realtemp
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post #7 of 22
Quote:
Originally Posted by GamingDaemon View Post
Cool. Thanks guys. My temps under load is high 30s low 40s. And no, my room is not cold. It is actually quite warm.

But cores 2 and 3 never seem to move. I adjusted RealTemp so the TJ Max is 100, but it just seems wierd that they never change. Did I not spread the themral compound enough or something?
dont adjust the TJ max if you have the newest version of Real temp you dont need to adjust it. Its stuck sensors 2 of mine never go below 37c
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post #8 of 22
Quote:
Originally Posted by redalert View Post
dont adjust the TJ max if you have the newest version of Real temp you dont need to adjust it. Its stuck sensors 2 of mine never go below 37c
Me too, my e7200 NEVER goes below 37c but when it's on full load it moves to 42c.
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post #9 of 22
I needed 1.375v in bios for vcore which meant 1.34v idle and 1.31v under %100 load in windows after vdroop with LLC disabled. Also needed 1.49v for northbridge and 1.36v for fsb term voltage to get it really stable at 3.6Ghz.

Even I had no problems for nearly a month @3.6Ghz I just reverted back to 3.4Ghz with safer settings. 1.49v seemed just too much for me and I do not have the chance to track nb temp on my Asus P5E3 since it doesn't have a sensor for nb. So I had no idea about nb temp and as far as I knew safe max for nb was 1.45v. I didn't like the idea to run it with a higher voltage than recomended without tracking the nb temp and for now using my q9400 @3.4Ghz for 24/7 use.

Good luck with your oc...
Edited by Prong - 3/5/09 at 3:15pm
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post #10 of 22
Quote:
Originally Posted by Prong View Post
I needed 1.375v in bios for vcore which meant 1.34v idle and 1.31v under %100 load in windows after vdroop with LLC disabled. Also needed 1.49v for northbridge and 1.36v for fsb term voltage to get it really stable at 3.6Ghz.

Even I had no problems for nearly a month @3.6Ghz I just reverted back to 3.4Ghz with safer settings. 1.49v seemed just too much for me and I do not have the chance to track nb temp on my Asus P5E3 since it doesn't have a sensor for nb. Even I had no idea about nb temp and as far as I knew safe max for nb was 1.45v I didn't like the idea to run it with a higher voltage than recomended and using my q9400 @3.4Ghz for 24/7 use.

Good luck with your oc...
I wonder if you had a P45 or x48 board if you would have better luck overclocking the Q9400
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