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post #6211 of 6481
Quote:
Originally Posted by matogl0396 View Post

Quote:
Originally Posted by arrow0309 View Post

Maybe, fist I have to stabilise it at 4.4, yesterday evening I tried a RB run and an error showed up after an hour (a windows error, the Luxmark stopped working) and I really don't know if I still have to increase the vcore, vcache or vccio / vccsa wheee.gif

What version of RealBench are you using and have you experienced those LuxMark crashes before? When I was using the previous version (2.4x?), I would get LuxMark crashes randomly some time into my benchmarks, like what you are describing. I read online some people say it is an incompatibility with Pascal drivers, or with certain monitoring programs, etc., but then I also read others saying that it is simply a sign of instability in your overclock. I really was never sure what to believe, but I could never fix the crashes.

This weekend, I updated to the newest RB v 2.54, and the behavior has changed. Now, the RB Stress Test is completely unusable, as LuxMark crashes instantly as soon as the test starts, even on completely stock settings (no overclock)! It also crashes instantly when I run the Open CL benchmark test, whereas in the old version I could pass that one without a LuxMark crash. So again, RB Stress Test is completely unusable, LuxMark crashes occur instantly, no matter what settings I use, even all stock settings which I have never experienced any instability with during normal usage.

I can run the RB Encoding benchmark, however. I can also pass the custom x264 stress test, and long runs of OCCT L, and Aida64 with all tests checked (CPU, FPU, Cache, Memory, Disk, GPU... I think they call this "Full Suite"?). So at this point I personally am very suspicious of the validity of a LuxMark crash in RealBench...

Let me know what you think.

P.S. I think @Bal3Wolf was experiencing these LuxMark crashes recently as well?
New version crashes for me also on luxmark, I had more luck using the hwbot realbench version.
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post #6212 of 6481
Quote:
Originally Posted by cekim View Post

You know Intel trolls these forums and just takes the highest prediction right? biggrin.gif
I dare intel to put that price tag on that CPU, I want to see how many people will finally be fed up and switch to AMD only. I'll buy one if it's around 1K though.

Edit. I wanted to add that Skylake-E uses about half the cache compared to a 6950X, the CPU would significantly cost less with less cache. I'm going by the numbers of this rumor that lists a 13.75MB cache. http://www.guru3d.com/news-story/intel-core-x-series-processor-family-and-x299-chipset-announced-at-computex-may-30th.html
Edited by Artah - 4/24/17 at 2:42pm
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post #6213 of 6481
Quote:
Originally Posted by matogl0396 View Post

What version of RealBench are you using and have you experienced those LuxMark crashes before? When I was using the previous version (2.4x?), I would get LuxMark crashes randomly some time into my benchmarks, like what you are describing. I read online some people say it is an incompatibility with Pascal drivers, or with certain monitoring programs, etc., but then I also read others saying that it is simply a sign of instability in your overclock. I really was never sure what to believe, but I could never fix the crashes.

This weekend, I updated to the newest RB v 2.54, and the behavior has changed. Now, the RB Stress Test is completely unusable, as LuxMark crashes instantly as soon as the test starts, even on completely stock settings (no overclock)! It also crashes instantly when I run the Open CL benchmark test, whereas in the old version I could pass that one without a LuxMark crash. So again, RB Stress Test is completely unusable, LuxMark crashes occur instantly, no matter what settings I use, even all stock settings which I have never experienced any instability with during normal usage.

I can run the RB Encoding benchmark, however. I can also pass the custom x264 stress test, and long runs of OCCT L, and Aida64 with all tests checked (CPU, FPU, Cache, Memory, Disk, GPU... I think they call this "Full Suite"?). So at this point I personally am very suspicious of the validity of a LuxMark crash in RealBench...

Let me know what you think.

P.S. I think @Bal3Wolf was experiencing these LuxMark crashes recently as well?


Quote:
Originally Posted by Bal3Wolf View Post

New version crashes for me also on luxmark, I had more luck using the hwbot realbench version.


I've always used the latest RB versions with this 6850K (RC2, RC1 and the finale vers 2.54) and only had once this crash, at the beginning of my 4.3 overclocking but someone told me it should be a sign of instability as well so I increased the vcore and get rid of it.
Yesterday evening once again yeah, but even if I've passed 2h of aida cache and over 800% Hci I was feeling something was not 100% OK (even with the vccio / vccsa and some other things)
This evening I took advantage of the London's chilly weather and run another RB sesion (still in progress).
But first I've loaded the previous (4.3, cache 3.6) bios profile in order to get the lower vccsa, vccio, vccin anb vcache (I've posted a few pages back) and simply set the 4.4 cpu and 3.7 for the cache and I've slightly increased even more the vcore, from 1.370 to 1.375v and lowered by the same amount (5mv) the cache voltage (now it's ~ 1.26 in full load).
The result is good for now, more than 2.5h passed, hoping for the best:





Quote:
Originally Posted by ELIAS-EH View Post

Really VCCSA/VCCIO are crazy voltages
Oc ram 3200 c16
Tried 1.15/1.1, 1.15/1.12, .13, .14 ,.15
Tried 1.16/1.16, 1.17/1.17, ... not stable until 1.2/1.2 passed 1500% hci memtest
Today i put vccio auto: 0.936V, VCCSA 1, 1.1 not stable,
Now VCCIO 0.936V VCCSA 1.12 V stable on hci memtest, these voltages are a lots of pain, but this is perfect for me

Interesting combo's
And yeah, fine tuning these two voltages has been a pain in the arse with high speed ram since not only the Xmp but even the manual timing will set them (on Auto) at insane voltages (at least in my case, like almost 1.4v for the vccsa)
Like I said above, it seems I've found safer values lowering them as well
Edited by arrow0309 - 4/24/17 at 1:46pm
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post #6214 of 6481
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post #6215 of 6481
Quote:
Originally Posted by Artah View Post

I dare intel to put that price tag on that CPU, I want to see how many people will finally be fed up and switch to AMD only. I'll buy one if it's around 1K though.

Edit. I wanted to add that Skylake-E uses about half the cache compared to a 6950X, the CPU would significantly cost less with less cache. I'm going by the numbers of this rumor that lists a 13.75MB cache. http://www.guru3d.com/news-story/intel-core-x-series-processor-family-and-x299-chipset-announced-at-computex-may-30th.html

careful what you wish for... The reality is there IS a market for high-clock rate, medium core count chips like the 6950x in the form of jobs that don't scale well beyond 8-12 cores.

My 6950x lays waste to my dual 2960v4 and 2696v3 (OC'd and u-code hacked to perform roughly on par with a V4) on such jobs - primarily because of the 4.x OC, but also because of the 3200 memory.

The high-core count chips have nothing to offer software that either isn't written to or structurally cannot take advantage of the cores and need GHz.
post #6216 of 6481
Quote:
Originally Posted by cekim View Post

careful what you wish for... The reality is there IS a market for high-clock rate, medium core count chips like the 6950x in the form of jobs that don't scale well beyond 8-12 cores.

My 6950x lays waste to my dual 2960v4 and 2696v3 (OC'd and u-code hacked to perform roughly on par with a V4) on such jobs - primarily because of the 4.x OC, but also because of the 3200 memory.

The high-core count chips have nothing to offer software that either isn't written to or structurally cannot take advantage of the cores and need GHz.
I gave my 6950X a good workout for a while using hand break.
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post #6217 of 6481
Quote:
Originally Posted by Artah View Post

I gave my 6950X a good workout for a while using hand break.
Not hand-brake but same here... It's been sucking in the amperes and pumping out the truth just fine for me.

Which is what has me concerned for pricing. I think it really will require AMD knee-capping them with a quad-channel memory 12-16core chip (16, pretty please?) @ 3.5GHz.

I really wish they could deliver 4.0-4.5GHz there, but I don't think either of them can do it with acceptable yield or TDP (to them, we obviously know there are those who are more than happy to deal with 250W of heat from thees chips).
post #6218 of 6481
When AMD FX is gunning for clocks, you guys say it's about IPC. Now that AMD can somewhat offer good IPC, you're crying foul for clocks. tongue.gif

AMD may have failed with their 14nm chips. But maybe they will get better. wink.gif
post #6219 of 6481
Quote:
Originally Posted by mus1mus View Post

When AMD FX is gunning for clocks, you guys say it's about IPC. Now that AMD can somewhat offer good IPC, you're crying foul for clocks. tongue.gif

AMD may have failed with their 14nm chips. But maybe they will get better. wink.gif
I've always said I need both... I need all the GHz and I need all the cores...

AMD went for a RISC core with x86 glue to get all the clocks, but like Alpha and PPC before them, they could not produce the IPC, so Intel caught them in practical terms before their ad-copy ink dried.
post #6220 of 6481
Quote:
Originally Posted by Jpmboy View Post

let's see if INtel can price that 12 core somewhere in the green-yellow zone, unlike the 6950X which was off the scale!


I hope so, I'd love to get my hands on another 8 or 10 core, not to say this 7700k@5Ghz isn't doing well, I'm certainly not having the issues that I had with both my x99 setups.
But I still miss the 6900k though redface.gif

I've got to build a new rig for myself or wife in July/August, so if it's released by then it'll be me getting it, might go full water for the first time too biggrin.gif
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