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Haswell Overclocking Guide [With Statistics] - Page 641

post #6401 of 19540
Does more vccin , make the stress on the mb higher?
post #6402 of 19540
Quote:
Originally Posted by taem View Post

Ok so two more questions for you pros.

I know high temps and voltage will degrade the cpu faster. I'm assuming 60c temp ceiling at 100% load is fine. But at what voltage does cpu degradation become an issue? What time frame are we talking in terms of how fast high voltage will degrade a chip? And will adaptive voltage help minimize this?

Second question, I will be adding a videocard. I won't be using Lucid Virtu MVP. Should I disable the HD4600?

Any voltage at all (including stock voltage) will degrade the transistors in your CPU. People have run in excess of 1.4v for years on different intel (especially SB) and amd cpu's without issues. I'd say if you're bellow 1.4v, you'll end up upgrade your CPU before it died due to the voltage running through it tongue.gif

Adaptive will reduce degradation, if only due to less voltage running through the cpu when not under load.

You can leave your HD4600 on; this will stop your graphics card from ramping its fans up and down when you switch between desktop and youtube/media environments tongue.gif
post #6403 of 19540
Doug you added me then went offline on skype biggrin.gif

I had to manually disable igpu, which cut idle power readings a bit (and maybe idles by a few c but it's obviously very difficult to say)
Quote:
Does more vccin , make the stress on the mb higher?

Well, if your CPU has to draw a certain amount of wattage, then you can either raise voltage or current to supply it. Raising VRIN is maybe even easier on the cpu/mobo because the wattage is forced to be supplied anyway when you raise the vcore
Edited by Cyro999 - 12/3/13 at 9:31am
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post #6404 of 19540
Yeah, been on/off the laptop the whole day, only time for a 6 min check in between pi runs! We'll have a blether tomorrow dude. thumb.gif
post #6405 of 19540
We still going on about stress test being the be all end all. Passing stress test is no guarantee your computer is 100% stable, it is a tool, like this guide or any equipment, use it but also use your own judgement. Seriously though, how many here pass prime, linpack, aida and still crash in game or doing other things. I have crash passing these test. I personally test computers from dell/hp using these programs and even those computers crash but since deployment they never have an issue. Sure I have to call in 4 or 5 every year for servicing but that's expected in this field.

I been saying and Dark and other say it too, test the way you use your computer. Heck, I notice people run stress test for 24 hours to get it game stable which is fine, but really when will someone use their computer 24 hour straight in a gaming session. I just help a friend do that over the holiday weekend, he rather spend thanksgiving testing the computer for 24 hour when he doesn't play more than 3-4 hours a day. Total waste of time. I understand the placebo effect of getting it prime stable and such but we really need to start thinking differently, and should stop telling people you need x amount of hours and x amount of test to be stable. To me that is a misconception, maybe years ago it had some weight but with improving with technology, production and bining I feel chip now are more studier.

I use to test for 12 hours because I used to game 8-10 hours on a weekend but now I don't even game 3 hours so I no longer test for 12. 5 or 6 hours enough for my need now, took awhile to convince myself too, that all this testing was a waste time. And oh yea the energy bill was killing me as well biggrin.gif .

Now about temp and voltage, I don't know about other but I put myself on an average 4 year upgrade cycle. If at let's say; 1.25 volt and 70c load temp degrade my chip in 10 years and 1.35 volt and 85c degrade it in 5 years, really wouldn't bother me since I will be upgrading by then. I am under the impression again that chip are more well built and staying under 1.45 (my limit for intel) and avoid hitting the thermal limit of the chip, you will be upgrading before the chip dies.

Can we stop it already with the idea that not 100% stress test stable mean an unstable system. Run some yes to help you find an overclock you comfortable with but real work world should be the ultimate indicator of stability. If you not stable in 2 week to a month doing what you do, you not stable.

P.S.

Running chip at 4.6 ghz 1.32 volt with temp hitting low 70s on real world work load. 1.32 fail xtu stress test in about a half hour but pass other test. So far over a month not one bsod doing what I do. Testing 4.7 over weekend now. So might not be prime/aida/linpack ready but good enough for me.

Thank goodness for winter when I can leave all windows open otherwise devil.gif
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post #6406 of 19540
Quote:
Originally Posted by kinzx View Post

We still going on about stress test being the be all end all. Passing stress test is no guarantee your computer is 100% stable, it is a tool, like this guide or any equipment, use it but also use your own judgement. Seriously though, how many here pass prime, linpack, aida and still crash in game or doing other things. I have crash passing these test. I personally test computers from dell/hp using these programs and even those computers crash but since deployment they never have an issue. Sure I have to call in 4 or 5 every year for servicing but that's expected in this field.

I been saying and Dark and other say it too, test the way you use your computer. Heck, I notice people run stress test for 24 hours to get it game stable which is fine, but really when will someone use their computer 24 hour straight in a gaming session. I just help a friend do that over the holiday weekend, he rather spend thanksgiving testing the computer for 24 hour when he doesn't play more than 3-4 hours a day. Total waste of time. I understand the placebo effect of getting it prime stable and such but we really need to start thinking differently, and should stop telling people you need x amount of hours and x amount of test to be stable. To me that is a misconception, maybe years ago it had some weight but with improving with technology, production and bining I feel chip now are more studier.

I use to test for 12 hours because I used to game 8-10 hours on a weekend but now I don't even game 3 hours so I no longer test for 12. 5 or 6 hours enough for my need now, took awhile to convince myself too, that all this testing was a waste time. And oh yea the energy bill was killing me as well biggrin.gif .

Now about temp and voltage, I don't know about other but I put myself on an average 4 year upgrade cycle. If at let's say; 1.25 volt and 70c load temp degrade my chip in 10 years and 1.35 volt and 85c degrade it in 5 years, really wouldn't bother me since I will be upgrading by then. I am under the impression again that chip are more well built and staying under 1.45 (my limit for intel) and avoid hitting the thermal limit of the chip, you will be upgrading before the chip dies.

Can we stop it already with the idea that not 100% stress test stable mean an unstable system. Run some yes to help you find an overclock you comfortable with but real work world should be the ultimate indicator of stability. If you not stable in 2 week to a month doing what you do, you not stable.

P.S.

Running chip at 4.6 ghz 1.32 volt with temp hitting low 70s on real world work load. 1.32 fail xtu stress test in about a half hour but pass other test. So far over a month not one bsod doing what I do. Testing 4.7 over weekend now. So might not be prime/aida/linpack ready but good enough for me.

Thank goodness for winter when I can leave all windows open otherwise devil.gif

Exactly what I've been saying. Personally, I'll run XTU for maybe a half hour, then I go about my regular activities. If I get a BSOD, I check out the code and make the necessary adjustment, then get back to my normal usage. I didn't build my PC to stress test the crap out of it, I built it to use it. biggrin.gif
post #6407 of 19540

BSODs aren't common for me anymore. I can leave prime on for an entire weekend and not experience a crash, same with gaming. This may be because I am more conservative than most in my OCing (oh boy, can't wait to start going higher, bring on the crashes!).

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post #6408 of 19540
So, any negatives in using High Performance power plan vs. Balanced? If I change Min CPU Power to 5% then it drops to 800MHz just like normally. I don't use C states anymore, I find C3 completely useless while C6/C7 are nice as you do get that ~0.16v but at idle you're not saving that much power.

Reason I ask is because in Balanced mode, even though C states are off, there is some lag/impact on SSD reads. I've made sure all of the LPM + HIPM/DIPM stuff is off so I don't know why. It goes away in Performance mode even with that Min CPU Power @ 5%.

So besides the negative I listed (don't get 0.16v @ Idle), anything else?
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post #6409 of 19540
Quote:
Originally Posted by taem View Post

I asked earlier about my 4670k @ 4.6ghz/1.253v hitting 86c peak in prime95. Helpful person told me prime95 produces unrealistic temps.

So I queued up some 1080p encodes, which I'm pretty sure is the most demanding thing I do on a pc cpu wise. Cpu usage is at 100%. Temp has not gone above 60c after more than 24 hours of straight encoding.

Can I rest assured this oc is fine for my system and I don't need to go down to 4.4 or so? Or should I still run an alternate synthetic benchmark?

Do you multitask ?

The RoG RealBench does encoding while multitasking .... if ya can do that, I'd say ya golden

http://rog.asus.com/forum/showthread.php?40057-RealBench-v2.0-Public-Beta!-amp-Leaderboard&country=&status=
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post #6410 of 19540
Realbench seems worse than my just manually encoding with updated encoder.

It does some other stuff, but the luxmark for example - i have to manually stop it, and run it myself, where i can't loop it, because it runs on my gtx770 instead of my CPU. The other stuff that realbench does doesn't seem that hard, and the encoder version they run is old and fighting for CPU time, so it's not as hard on CPU either
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