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[Official] Delidded Club / Guide - Page 1342

post #13411 of 33668
Quote:
Originally Posted by Joa3d43 View Post

-...4.5 should easily be possible at that voltage for your chip...with the right cooling, even with ambient temps in the mid-30ies, 4.8 is also not totally unrealistic.
Have been testing 4.5gHz and have had to push the voltage up to 1.285 and it still keeps failing Prime95 running a custom blend with +90% memory utilisation after 1-2 hours sadsmiley.gif
I'm beginning to wonder whether my RAM might have a problem. I've run Memtest on it overnight at stock settings and had no errors. I've run the same test with my current 24/7 overclock of 4.3GHz @ 1.2V and it comes up with errors. I also switch from fixed voltage to an offset overclock with DVID-0.070 @ 4.3GHZ to get my target VCore of 1.2V. It passed a 12 hour run of Prime95 but crashed the moment I started playing some games. I'm not sure what's going on.
Quote:
Originally Posted by Joa3d43 View Post

Watercooling (Click to show)
..each chip will have it's own 'wall' it hits at a given speed...with some 3770K's it can set in around 4.4, others don't hit it until 5 or 5.1 and a few select chips don't see it far beyond that...but that wall is there, requiring a much steeper vCore increase for the next 100 MHz step.

...up until recently, I ran a 'closed-loop' Thermaltake Water 2 Extreme 240mm unit which I highly recommend for those folks interested in water-cooling but not yet looking at a custom loop. Other good closed loop ones would be the related KrakenX60 and the new Swiftech.

In my case, the closed loop was good enough for a nice, cool 4.9 daily (ambient usually is 22 C), with 5 a possibility though temps would slip into the high 80ies (pre-delid). Once delidded, I saw a combined 20.5 c drop from the delid and CL-U on the IHS- and going to a powerful CPU custom loop saved another 5-10 C (not done final testing yet as I should lap my IHS given its curvature)...with that overall temp drop, all my speed settings tr vCore had to be redone biggrin.gif ...because on average, I could lower vCore by 0.05v due to the massive combined temp savings...that's IvyBridge for you...VERY temp sensitive mad.gif

Intel(R) IPP JPEG encoder 7.0.1041 - Jul 19 2011;
I've considered a closed loop water cooling solution however I have a Fractal R3 case and would need to do to much modification to it to fit a 240mm radiator in. Also my video card gets a tad warm under load so I would want to cool that as well. By the time I buy something like the Thermaltake for the CPU and Accelero Hybrid for the GPU I'm only maybe $50-$100 off a custom loop any way. As I said I'm happy running on air and am only really pushing the overclock just to see what I can get it do do biggrin.gif
Quote:
Originally Posted by Joa3d43 View Post

Stability Testing (Click to show)
- re stability testing, I would recommend Intel's actual stability and stress testing software Embedded in Intel's XTU (Extreme Tuning Utility)...more here: http://www.overclock.net/t/1313179/official-delidded-ivy-bridge-club/13050#post_19431442 .

I find it to be tougher, ie on memory test (which of course is also a CPU test in its own right), than Prime95 - XTU will heat up my system (post delid, custom loop) by 5 to 7 C MORE than Prime95...I'm running 32GB of TridentX and the CPU's IMC (memory controller) has its hands full with that during stress testing...and if you really want to / need to, you can set it to run up to 30 days... Intel's XTU is what the pro's are using in commercial builds and serious /pro-overclocking, per referenced post.
I'll give that a go. I know Intel Burn Test heats up my CPU more than Prime95 does.
Quote:
Originally Posted by Joa3d43 View Post

- ...look forward to follow your progress...by the sounds of it, you have more than reasonable speed targets in mind while also thinking about ambient temps during the hot season... smile.gif
Thanks I appreciate the help you've given me thumb.gif
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post #13412 of 33668
Quote:
Originally Posted by kesawi View Post

Have been testing 4.5gHz and have had to push the voltage up to 1.285 and it still keeps failing Prime95 running a custom blend with +90% memory utilisation after 1-2 hours sadsmiley.gif
I'm beginning to wonder whether my RAM might have a problem. I've run Memtest on it overnight at stock settings and had no errors. I've run the same test with my current 24/7 overclock of 4.3GHz @ 1.2V and it comes up with errors. I also switch from fixed voltage to an offset overclock with DVID-0.070 @ 4.3GHZ to get my target VCore of 1.2V. It passed a 12 hour run of Prime95 but crashed the moment I started playing some games. I'm not sure what's going on.
I've considered a closed loop water cooling solution however I have a Fractal R3 case and would need to do to much modification to it to fit a 240mm radiator in. Also my video card gets a tad warm under load so I would want to cool that as well. By the time I buy something like the Thermaltake for the CPU and Accelero Hybrid for the GPU I'm only maybe $50-$100 off a custom loop any way. As I said I'm happy running on air and am only really pushing the overclock just to see what I can get it do do biggrin.gif
I'll give that a go. I know Intel Burn Test heats up my CPU more than Prime95 does.
Thanks I appreciate the help you've given me thumb.gif

...sounds like your chip has a very responsible owner...ultimately, you have to decide what the highest level of vCore under load you are comfortable with >>>which of course is the age-old question...with good cooling, you can run lower Vcore or higher GHz....but in the end - and take it from a speed-freak who is sick at home so he established 12 records at HWBot over two days - what it really comes down to is only '3D gaming / video'...whether your email runs at 4, 4.5 or 5 GHz is totally immaterial, other than wanting to know how far you can push a given chip >>>just because you want to know biggrin.gif

...I guess I am saying that whatever your computer budget is, go for video first because it makes the most daily difference.

...here is the link to Intel's XTU...not only does it have the 'real stress test', but I find that it is among the best overclocking tools...when I use that, I can usually lower my vCore by a step, presumably because it has fixed formulas for PLL and various other things people easily bring out of balance...best of luck thumb.gif http://www.intel.com/content/www/us/en/motherboards/desktop-motherboards/desktop-boards-software-extreme-tuning-utility.html
post #13413 of 33668
Have not seen the de lidded club Mascot around much?

Oh where Oh where has our Von Dutch gone? Visted the Red light Dist again?
    
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post #13414 of 33668
What do you guys set your PLL voltage to? What happens if you set it 'too' low? I heard on one guide that lowering it affect overclock performance and you shouldn't go below 1.709?

trying to hit 5ghz@~1.45-1.55v 24 hour p95 stable. Hopefully less rather than more. Running 1.5v PLL, having Kernel-WHEA errors after a few hours of testing but i think that's vcore related (ive got it so system shuts down when WHEA errors occur).

http://www.thinkcomputers.org/intel-ivy-bridge-overclocking-guide/
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post #13415 of 33668
Ive always left it at my MB auto of 1.8 , have just dropped it to 1.715. Will fold with that and see how it turns out. Not going to waste folding time to run Prime 95 seeing my GPU's have picked up some 40+ ppd units biggrin.gif. Besides that I think if I can fold 24 hours plus with no WHEA errors I can call it stable.
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post #13416 of 33668
Thread Starter 
Quote:
Originally Posted by RavageTheEarth View Post

OCN name: RavageTheEarth
CPU: i7-3770k
on die-TIM: MX4
ihs-TIM: MX4
Mhz gained: Not totally sure just got the CPU today, is that ok? I would say around 300Mhz though
OC after delid: 4500
Temp drops: 7c
CPU-Z validation of max OC:





Is that all the right info? I got the CPU today and just popped it in and made sure it wasn't horrible and then took it out and delidded it. Can't wait to be part of the club finally!

You're In! thumb.gif Now Slap that brand new and amazing Sig on! About time you got in here right! tongue.gif

With PLL it can matter on the OC as with my last chip I ran 1.5 for all the way to 4.8 Giggles and didn't have any issues during my folding fun. I usually set it for 1.9 during major OC'ing/benching runs just to help for stability.
Edited by Valgaur - 3/9/13 at 11:46pm
post #13417 of 33668
Quote:
Originally Posted by Belial View Post

What do you guys set your PLL voltage to? What happens if you set it 'too' low? I heard on one guide that lowering it affect overclock performance and you shouldn't go below 1.709?

trying to hit 5ghz@~1.45-1.55v 24 hour p95 stable. Hopefully less rather than more. Running 1.5v PLL, having Kernel-WHEA errors after a few hours of testing but i think that's vcore related (ive got it so system shuts down when WHEA errors occur).

http://www.thinkcomputers.org/intel-ivy-bridge-overclocking-guide/
i run 1.38v -1.416v for 5 ghz and cpu pll @ 1.605v no whea errors
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post #13418 of 33668
How do you guys make your computer shutdown if you get an errors in p95 or at a certain temperature that is too high for your personal liking?

Thanks valgaur! I'll still post my before and afters, but it will be from mx4 to CLU:thumb:
post #13419 of 33668
Quote:
Originally Posted by Joa3d43 View Post

...sounds like your chip has a very responsible owner...ultimately, you have to decide what the highest level of vCore under load you are comfortable with >>>which of course is the age-old question...with good cooling, you can run lower Vcore or higher GHz....but in the end - and take it from a speed-freak who is sick at home so he established 12 records at HWBot over two days - what it really comes down to is only '3D gaming / video'...whether your email runs at 4, 4.5 or 5 GHz is totally immaterial, other than wanting to know how far you can push a given chip >>>just because you want to know biggrin.gif

...I guess I am saying that whatever your computer budget is, go for video first because it makes the most daily difference.
Seeing as I delidded I'm not sure whether that makes me a responsible owner whistle.gif I agree, my GTX670 sustains +60fps at 1920x1200 with full eye candy on everything I play so the difference between 4.3GHz and 4.5 or 4.7 for that matter is pretty immaterial. I occasionally may do some video encoding, but for me it's critical to have 24/7 stability as my kids use the PC and I don't want it crashing on them. Have really just being trying to push it and see how far I can get my chip for curiosity's sake. I've had some good benchmarks with 3DMark (In the top 4) and 3DMark11 (just outside top 20) for a single GTX670 so was hoping to try and get a bit more out of the chip as there's only a small margin between my scores and #1 hardware spot that an extra 200MHz would give me, but I'm not real fussed if I don't get it. I've tried briefly putting it to 5GHZ @ 1.5V but 3DMark crashes as soon as the run starts. Best I've been able to sustain for a complete run is 4.8GHz and that took 1.5V. I think 4.3GHz seems to be my wall.
Quote:
Originally Posted by Joa3d43 View Post

...here is the link to Intel's XTU...not only does it have the 'real stress test', but I find that it is among the best overclocking tools...when I use that, I can usually lower my vCore by a step, presumably because it has fixed formulas for PLL and various other things people easily bring out of balance...best of luck thumb.gif http://www.intel.com/content/www/us/en/motherboards/desktop-motherboards/desktop-boards-software-extreme-tuning-utility.html
I had a play around with it but can't find where to set VCore.
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post #13420 of 33668
Quote:
Originally Posted by RavageTheEarth View Post

How do you guys make your computer shutdown if you get an errors in p95 or at a certain temperature that is too high for your personal liking?
Not sure how to get it to shut down on Prime95 errors, but if you use Core Temp (http://www.alcpu.com/CoreTemp/) you canconfigure it to automatically shut down above a certain temperature threshold.
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