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When is it time to stop Overclocking? - Page 5

post #41 of 55
Quote:
Originally Posted by Viridian View Post
Erm, 85C is not safe on either Sandy Bridge or Core2. The max temp for a Core2 is 76C and 73C on SB. 85C is NOT safe. Most people like to keep their 100% load temps at 60C or there abouts...
It depends on what you mean by safe ??

If i only want to keep my chip for 12-24 months before a new one comes out then running it @ 85c is no problem whatsoever, I would not break the tcase temp if i intended on keeping my cpu for it's full life cycle, My old q6600 is four years old running 3.2ghz @ 80c full load and is perfectly fine to this day
Edited by Chewy - 4/30/11 at 3:28pm
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post #42 of 55
with a good cooler your going to limit yourself via voltages and vice versa.
i have a good cooler so temps are simply not a problem so my personal limit is not wanting to fry my cpu or severely degrade its life span.
currently running i5 2500k 4.7ghz at 1.356v 24/7
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post #43 of 55
Quote:
Originally Posted by Chewy View Post
Page 78

http://download.intel.com/design/pro...hts/324641.pdf

Although i agree i would not want to go near that voltage i also do not agree with 1.38v being the max safe voltage just because so called reviewers say so, Also if you do a forum search you will see there are plenty of posts where people have spoken to intel live support and everyone has been told that 1.52v is max safe voltage, Im yet to see a thread anywhere on the internet of somebody blowing their cpu from high voltage and many run 1.5v+ 24/7 Overclockers uk were screaming dont go above 1.32v when sb first came out!
Quote:
Originally Posted by Chewy View Post
It depends on what you mean by safe ??

If i only want to keep my chip for 12-24 months before a new one comes out then running it @ 85c is no problem whatsoever, I would not break the tcase temp if i intended on keeping my cpu for it's full life cycle, My old q6600 is four years old running 3.2ghz @ 80c full load and is perfectly fine to this day
1.52v is also on the link I posted, but like I say, that doesn't mean that's a safe usage.

I plan on keeping my chip for years. I can't afford to replace my CPU and motherboard every 12 months, at all.

And yeah, I've seen OCUK calling for 1.32v as well. I still don't think running at 1.52v is safe, though. Especially since Intel wouldn't comment on 1.52v. I even posted a screenshot in another thread of the Intel rep staying well clear of the question. I also believe these comments by Intel reps (posted by other people) were quite a while before I contacted Intel (as I contacted them to try and confirm what others were saying, which Intel refused to comment point blank. So maybe something has happened somewhere in the Intel chain of command that has made all Reps refuse to comment further)

I mean, this said, Intel said the safe voltage for Core2 was 1.36v, but many ran at 1.46v rather well for a long time. I personally ran a Q9450 at 1.4v@3.6GHz for months. I also don't believe there has been enough testing done at these voltages to determine what is safe and what is not.

I make a point of mentioning the recommended safe voltages in every single thread where someone asks, but I always point out that some people are running higher with no problems. Still, I have to admit I freak out when people say they're running 1.6v to get to 5GHz. I think these people are just so set on getting to 5GHz that they'll get really angry with you for telling them to back off the volts. Mainly because they're jealous of other's OC's that have OC'd extremely well. like this one. But heh, no, this makes mea troll, for some reason!
    
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post #44 of 55
I am limited by my 411FSB limited G31 Chipset Motherboard :/

Really wanted to OC the E8400 Heavily as it does 3.71 with 1.18v
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post #45 of 55
For my 920, I try not to exceed 1.5V.

Even thought my temps are awesome.
post #46 of 55
When I have instability because my VRMs can't give my CPU enough power.

I'm upgrading soon, so that's ok
Edited by Concorde105 - 5/2/11 at 5:59am
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post #47 of 55
Quote:
Originally Posted by Viridian View Post
1.52v is also on the link I posted, but like I say, that doesn't mean that's a safe usage.

I plan on keeping my chip for years. I can't afford to replace my CPU and motherboard every 12 months, at all.

And yeah, I've seen OCUK calling for 1.32v as well. I still don't think running at 1.52v is safe, though. Especially since Intel wouldn't comment on 1.52v. I even posted a screenshot in another thread of the Intel rep staying well clear of the question. I also believe these comments by Intel reps (posted by other people) were quite a while before I contacted Intel (as I contacted them to try and confirm what others were saying, which Intel refused to comment point blank. So maybe something has happened somewhere in the Intel chain of command that has made all Reps refuse to comment further)

I mean, this said, Intel said the safe voltage for Core2 was 1.36v, but many ran at 1.46v rather well for a long time. I personally ran a Q9450 at 1.4v@3.6GHz for months. I also don't believe there has been enough testing done at these voltages to determine what is safe and what is not.

I make a point of mentioning the recommended safe voltages in every single thread where someone asks, but I always point out that some people are running higher with no problems. Still, I have to admit I freak out when people say they're running 1.6v to get to 5GHz. I think these people are just so set on getting to 5GHz that they'll get really angry with you for telling them to back off the volts. Mainly because they're jealous of other's OC's that have OC'd extremely well. like this one. But heh, no, this makes mea troll, for some reason!
I agree 1.6v is just asking for it imo for 24/7 use anthing over 1.45-1.5 seems abit much but i suppose time will tell, If it wasn't for folding i would deffo hold a 4.5ghz overclock @ 1.35v with temps below 60 that is the perfect 24/7 combo with long term reliability in mind
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post #48 of 55
Quote:
Originally Posted by Concorde105 View Post
When I have instability because my VRMs can't give my CPU enough power.

I'm upgrading soon, so that's ok
Man everytime i see your avatar it chokes me up i miss that bird
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post #49 of 55
I stop overclocking at 3 AM.

/obvious joke
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post #50 of 55
I'm pretty conservative about ocing. I limit myself by voltage or temp which ever comes first. I like to find the most efficient speed. On my sigrig I've gone back to 3.86 as it's the peak efficiency of voltage vs clock speed. Prior to that I had it up to 4.01 not high enough to really make a difference but the highest I could get at my limit of 1.3 v vcore. It required 50mv vtt and 1.55v dram. Not really worth it for 160 MHz more. I have enough cooling ability to go up higher but frankly I want this one to last a long time.

Now my i3 rig I go up to intels stated max of 1.4 but that's 1/10th price.
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