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Intel E8400 - Ultimate OC! - Page 3

post #21 of 72
People say that you shouldnt go over 1.3625 because that is the max voltage that Intel gives you. I assure you, if any of you were ACTUALLY running over 1.3625 consistently, degradation is occurring. Your CPU might not die after a few days, but you are exponentially shortening its life.

This being said, its unlikely that any of you is actually giving your CPU over that voltage for any extended length of time due to VDROOP. I could be wrong, but a feel pretty confident that most of you are not idling above that 1.36 voltage, let alone under load.

I could be wrong though.

Edit: Gah. Robilar must have been writing his post the same time I was.
Edited by trapperkeeper - 12/12/08 at 9:30am
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post #22 of 72
Its not going to blow..even I cant blow them up . It will slowly degrade in OC potential though.. I have had that happen to CPU's before from stability testing with vcore that are considered 'dangerous'.

As a fellow 'boundary finder/breaker' I share your enthusiasm for clocking on the edge..just not stress testing with such a high OC & a hardcore program.. Prime95 is a 'hard enough' load for a 1.5ghz OC..

Degradation from vcores greater than 1.35v for 45nm is BS unless your temps are total garbage..or unless you are trying to use Intel Burn with a 4+ghz OC.. Why people use that program, I will never know..the load it puts on your CPU is astronomical..real-world computing will never produce even half of that load for the CPU.
Edited by CL3P20 - 12/12/08 at 9:32am
post #23 of 72
that's the VID voltage range....

intel states 1.45 is the absolute recommended max voltage...and for the record, I have been overclocking wolfdales since they came out and have had about 17 chips so far. I have not once seen a single piece of evidence of any of my chips degrading. I try to keep my chips under 1.45V for 24/7 clocks but for benching have been up to 1.5V.

My current E8500 does 4.6GHz at only 1.4V and gives very low temps as well...but I might crank her up to 1.45V to see if I can get something better.


http://download.intel.com/design/pro...hts/318732.pdf


Edited by gurusan - 12/12/08 at 9:32am
    
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post #24 of 72
Quote:
Originally Posted by trapperkeeper View Post
People say that you shouldnt go over 1.3625 because that is the max voltage that Intel gives you. I assure you, if any of you were ACTUALLY running over 1.3625 consistently, degradation is occurring. Your CPU might not die after a few days, but you are exponentially shortening its life.

This being said, its unlikely that any of you is actually giving your CPU over that voltage for any extended length of time due to VDROOP. I could be wrong, but a feel pretty confident that most of you are not idling above that 1.36 voltage, let alone under load.

I could be wrong though.

Edit: Gah. Robilar must have been writing his post the same time I was.

I say this is bull****.. most car's got the RPM redline at 6.5krpm, yet you can shift at 8k constantly without ruining your car... it WILL degrade faster, but you might not keep it long enough to notice.

Maybe not the best comparison but you get my point.
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post #25 of 72
Well your comparison is a good one, because it just illustrates our point. It will eventually ruin your CPU, and I have seen reports that overvolting above the recommended maximum can exponentially shorten the life of your CPU. We arent saying its going to explode right away, we are saying it is harmful.

Edit: And to Gurusan, that isnt in anyway evidence that the chips arent degrading. Perhaps someone can correct me, but Wolfdales have been out less then a year if I remember correctly. Certainly not enough time to give evidence that exceeding that max voltage does not negatively affect your CPU's life.

And as I said before, I really dont think you run into many people that actually have over that number on their chips once they actually enter their OS, due to VDROOP
Edited by trapperkeeper - 12/12/08 at 9:41am
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post #26 of 72
Yes, increasing the vcore from 1.3 to 1.45 may reduce the design life from 15 years to 8.

Oh noes.
    
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post #27 of 72
Quote:
Originally Posted by gurusan View Post
Yes, increasing the vcore from 1.3 to 1.45 may reduce the design life from 15 years to 8.

Oh noes.
more like 10 to 5 but who cares, even if it'd be 10 to 2.. noone keeps a performance rig for more than 2 years..
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post #28 of 72
Well people need to be clear about what they are saying. Earlier in the post a few posters were saying that overvolting has no affect on your CPU, and that people should just ignore the max voltage and worry only about their temps.

Sure, you may not keep your CPU long enough to be affected in any way by the damage you did to it. But thats not what I was saying.
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post #29 of 72
Quote:
Originally Posted by trapperkeeper View Post
Well people need to be clear about what they are saying. Earlier in the post a few posters were saying that overvolting has no affect on your CPU, and that people should just ignore the max voltage and worry only about their temps.

Sure, you may not keep your CPU long enough to be affected in any way by the damage you did to it. But thats not what I was saying.
I'd round it this way: If you're poor or overall very carefull, go for 1.3625 max
If you like to take some relatively low risks knowing something wrong COULD happen but most likely won't for the time you actually use the rig, go for 1.38 to 1.4 as a max. (proportionnaly to your wallet and risk loving personnality.)
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post #30 of 72
It just seemed like people were saying that if you go over 1.3625V that you would be facing problems down the line...which really is not the case at all. Otherwise pretty much all my chips would have shown signs of degradation, and none have.

have you guys seen the guy at XS putting 2V through his wolfdales and folding with them 24/7? He did this with a number of rigs to prove there was no degradation, and its a few months later and still no degradation.

..not that I recommend putting 2V through your chip.
    
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