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Trouble OC Q6600 to 3.6 GHz - Page 5

post #41 of 46
Quote:
Originally Posted by chemicalfan View Post
That isn't true, you can have a chip running at 40C load with a VCore of 1.55 and still cook it over time.
Quote:
Originally Posted by Danylu View Post
I second that.

Chill out with the vcore or you'll be forking out for another processor soon.
Quote:
Originally Posted by killbot View Post
He might want to only heat his house with this chip LOL
Quote:
Originally Posted by kurei View Post
completely agree.... thats what made me tell him to lower it in the first place ... take it from an electronics engineer man.... vcore seen on screen is not an absolute measure of how much stress your processor is under . its indicative at best.... You have Millions of transistors on your chip and when you increase vcore beyond a certain point . you are over-biasing everyone of them. When you over-bias too much, temps are the least of your worries... the biggest concern is destroying the p-n junctions on some vital transistors and if you do that.... your processor is cooked... so if you have too much vcore its important to run it in short bursts at most 7-10 hrs is the most ill give you on a Q6600 at a vcore of 1.60

Alright everyone...I recently had my E6600 go south to like anti antarctica....and it took one of my Maximus Extreme mb with it.

Since then my dad an electronics engineer asked me why do you have it running @ 4Ghz anyway...you cause it to _ _ _ _ _ go bad...something like that.

I got a c2Q6600 now I've been running it for the third day. First I said I wouldn't overclock it that high again...

Day one- 3.5

Day two- 3.8

Today - 4.0Ghzzzzzzzzz....

I was curious to see if it was anymore stable than the E6600...so far it actual is much better at stability...plus...

Hmm, it is just so much better at every application...surfing the net has never been this fast.

Though now I am concerned so I will ask this question.

Chemical fan you said that over time a chip running 40c can cook. What about a chip running at 10c....or less for that matter.

Currently, I have core #0 23c core #1 23c core #2 14c core #3 14c....10c reading is from pc probe..

Actually the temp at the evaporator is much more like -20c to -30c...........

So the question is can I safely run the c2Q6600 at this speed for longevity?

As in for months 12+....as I am not planning on getting a new cpu until the next generation nephalem in 4q 08 but then rotating this c2Q6600 into a dual quad server build.



What does everyone think???

If it means this won't last longer than a few weeks...I'll turn it down
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post #42 of 46
If you're running at high voltages, it's still at risk of damage. In theory, from an electronic engineering point of view (I'm not an engineer, btw), if you super cool the chip, it will lower resistance, and therefore lower the required voltage? Hopefully someone with superior knowledge can confirm that!

Actually, now I think of it, I think that's complete rubbish. Anyway, net result is that with great cooling you can protect the chip from temperature damage, but not from voltage damage
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post #43 of 46
Quote:
Originally Posted by chemicalfan View Post
If you're running at high voltages, it's still at risk of damage. In theory, from an electronic engineering point of view (I'm not an engineer, btw), if you super cool the chip, it will lower resistance, and therefore lower the required voltage? Hopefully someone with superior knowledge can confirm that!

Actually, now I think of it, I think that's complete rubbish. Anyway, net result is that with great cooling you can protect the chip from temperature damage, but not from voltage damage

One at a time ... Semiconductors dont really work on resistance vs voltage that is ohms law.... V=IR does not hold good for your Processor.... If it were a conductor you would be right but its not.... Transistors especially BJTs and FETs are basically operating on bias voltages , drift currents and p-n junctions... a p-n junction is a thin layer of p doped semiconductor and on an n-doped semiconductor... they are really close together....(now you know what the 45nm really means) you have to bias a transistor to be able to obtain accurate 0 and 1 states from it .... which is where binary comes from.... every transistor has a rated bias voltage at which you can safely operate it.... i

f you exceed that bios voltage too much there is a good chance over time that you might trigger an avalanche breakdown in one of the junction diodes that make up a transistor.... at that point cooling wont help. I hope ive been clear enough ... I left out a lotta technical numerical jargon which couldve made it clearer...
post #44 of 46
Thread Starter 
This is weird my VID dropped to 1.1625 and I had to increase my PCIE to 101 because if I go to 100 the 3rd core keeps on failing prime95 after a min. How do I check if PCIE 101 is not causing any problems to my computer components like when I set it to 110 my internet stops working...any suggestions? Thanks
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post #45 of 46
um update your mobo bios for one
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post #46 of 46
I have a Q6600 with a Vid of 1.275 and it took a 1.5Vcore just to get to 3.6Ghz (1.44 after Vdroop). I'm thinking about putting my cpu at 3.4ghz and only using 3.6Ghz for benchmarking and what not.
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