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== Haswell-E Overclock Leaderboard & Owners Club == - Page 1404

post #14031 of 22164
Quote:
Originally Posted by st0necold View Post

Guys im confused. I have my rig set to 4.0 OC / XMP...

Everything on 3dmark results show my CPU at 3.9999 (O.K)

Now I run the damn CPUZ validator and it shows the voltage correct from the preset but the clock shows 4.3 can someone explain?

http://valid.x86.fr/4eursd

Sorry guys i'm a little new to this but I am trying my hardest to not ask questions and continue learning.

Here are my current bios settings




Your running 125 Strap and core @ 35 that comes to 4.37Ghz

.........Man idk your screen shot say's something else. Might be because you have Intel turbo boost enabled.
Edited by lilchronic - 11/1/15 at 2:49pm
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post #14032 of 22164
Quote:
Originally Posted by lilchronic View Post

Your running 125 Strap and core @ 35 that comes to 4.37Ghz

.........Man idk your screen shot say's something else. Might be because you have Intel turbo boost enabled.

Thanks Chronic bro for your help.

Turbo is enabled, however-- the "Turbo 4.0" setting isn't what i'm using i'm just using the 4.0 preset. I am going to take a screenshot of the other bios page.

Turbo is enabled however so maybe thats it? 3d mark shows 4.0ghz...

EDIT: here's the other screens









EDIT: Tally???

I just moved from Tally last year bro... I have lived in Tallahassee off and on for about 5 years!!! 850 shoutout!!!



UPDATE: Just restarted rig, ran it again and it shows correctly. I think the BIOS is buggy...

http://valid.x86.fr/izpnxc


Edited by st0necold - 11/1/15 at 9:33pm
post #14033 of 22164
Quote:
Originally Posted by st0necold View Post

Thanks Chronic bro for your help.

Turbo is enabled, however-- the "Turbo 4.0" setting isn't what i'm using i'm just using the 4.0 preset. I am going to take a screenshot of the other bios page.

Turbo is enabled however so maybe thats it? 3d mark shows 4.0ghz...

EDIT: here's the other screens

Warning: Spoiler! (Click to show)





EDIT: Tally???

I just moved from Tally last year bro... I have lived in Tallahassee off and on for about 5 years!!! 850 shoutout!!!





UPDATE: Just restarted rig, ran it again and it shows correctly. I think the BIOS is buggy...

http://valid.x86.fr/izpnxc



Nice man i have been living here for the past 5 years. 850 thumb.gif

See how it goes with turbo boost disabled. I also had a asrock x99 board and it was pretty buggy. Ever since the z77 oc formula to z97 oc formula ive always had good luck with there boards, then x99 comes around and its all buggy . thumbsdownsmileyanim.gif
Edited by lilchronic - 11/2/15 at 1:11am
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post #14034 of 22164
Quote:
Originally Posted by Agenesis View Post

Prime is failing after the 15 hour mark, any ideas? It passed multiple 24 hour + blend tests before I decided to undervolt my 4ghz cache to 1.25v and OC my ram to 2666 and reducing the timings as well, so it's probably not the CPU. HCI passed with 1500%, fluke or not I don't know. Never really tested cache but I dropped it from 1.3v to 1.25v after reading a few posts about potential degradation. Failing on the large ffts means it's a non-cpu related problem after some googling. Warning: Spoiler! (Click to show)

most recent version? check with @blameless - dude knows p95. thumb.gif
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post #14035 of 22164
Quote:
Originally Posted by Agenesis View Post

Prime is failing after the 15 hour mark, any ideas? It passed multiple 24 hour + blend tests before I decided to undervolt my 4ghz cache to 1.25v and OC my ram to 2666 and reducing the timings as well, so it's probably not the CPU. HCI passed with 1500%, fluke or not I don't know. Never really tested cache but I dropped it from 1.3v to 1.25v after reading a few posts about potential degradation. Failing on the large ffts means it's a non-cpu related problem after some googling.

Rounding errors on a bunch of cores around the same time is almost always cache or memory...usually cache if it's in-place FFTs and not blend. More rarely it can be input voltage. If it was a weak core/L2, most of the time just that core will error out.

What version of Prime 95 is this? I would not recommend running the 28.x versions at 4GHz+ cache unless you have exceptionally good cooling, or an exceptionally strong sample.
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post #14036 of 22164
Quote:
Originally Posted by Blameless View Post

Rounding errors on a bunch of cores around the same time is almost always cache or memory...usually cache if it's in-place FFTs and not blend. More rarely it can be input voltage. If it was a weak core/L2, most of the time just that core will error out.

What version of Prime 95 is this? I would not recommend running the 28.x versions at 4GHz+ cache unless you have exceptionally good cooling, or an exceptionally strong sample.

Which if these should be set to 0 in p95's local.txt file to fully tame prime95 v28.7 and make it safe to run on an overclocked haswell-e system?

CpuSupportsAVX=0
CpuSupportsFMA3=0
CpuSupportsFMA4=0
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post #14037 of 22164
I have a question for you all...How necessary is it to run a stress test for 24+ hours? I have my 5960X sitting at 4.4ghz @1.246V and it passed A64 for 2 hours without issue. I've been running games and benchmarks for over a month with no issues. Not a single BSOD or anything really weird at all.

The only reason I ask is because 4.4ghz @1.246V seems too good to be true on a 5960X.

Thanks in advance.
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post #14038 of 22164
Quote:
Originally Posted by michael-ocn View Post

Which if these should be set to 0 in p95's local.txt file to fully tame prime95 v28.7 and make it safe to run on an overclocked haswell-e system?

CpuSupportsAVX=0
CpuSupportsFMA3=0
CpuSupportsFMA4=0

FMA4 is AMD only and won't be used on Intel setups.

FMA3=0 should knock down the stress to about 27.9 levels. If you are OCed too far to be reasonably safe here, your probably not looking at an OC you want 24/7 anyway.

AVX=0 will knock stress almost all the way back to 26.x levels, which is almost uselessly light on anything past Gulftown.
Quote:
Originally Posted by CookieSayWhat View Post

I have a question for you all...How necessary is it to run a stress test for 24+ hours? I have my 5960X sitting at 4.4ghz @1.246V and it passed A64 for 2 hours without issue. I've been running games and benchmarks for over a month with no issues. Not a single BSOD or anything really weird at all.

The only reason I ask is because 4.4ghz @1.246V seems too good to be true on a 5960X.

Thanks in advance.

The length of time you want to stress is going to depend on how confident you need to be of stability vs. how much time you are willing to spend and how much potential wear and tear you are willing to put the CPU though. Often time is better spent running a mix of tests than running a single test for a protracted period of time, though for situations where stability is critical, I will run the most typically stressful tests I use first, for quite a while, to rule out any subtle problems as soon as possible.

Two hours of AID64 doesn't really say much beyond ruling out the most obvious instabilities. If you are just playing games and don't have any irreplaceable data on your system, it may still be enough.
Edited by Blameless - 11/2/15 at 11:18am
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post #14039 of 22164
Ok I've had everything running smoothly for a few days.
But today after reading the last 2 post I thought, hmm I'll give Prime95 a 1 minute run.
To my mistake I used 28.7, but to my surprise my system hung within 30 seconds, it's passed every other test we use, but not 30 seconds of Prime95 28.7.

So does that mean my system isn't truly stable?


Update:
This is what was needed to pass 1 test, CPU was at 4.2Ghz, VCCSA was at XMP defaults (+0.36v offset),
I usually consider getting that far into Prime95 28.7 stable..lol:



But in saying that look at the consistent numbers in x265 Benchmark.
I can get these every time now, where before they was a 5 - 10fps difference each instance.


Edited by schoolofmonkey - 11/2/15 at 3:33pm
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post #14040 of 22164
Quote:
Originally Posted by schoolofmonkey View Post

Ok I've had everything running smoothly for a few days.
But today after reading the last 2 post I thought, hmm I'll give Prime95 a 1 minute run.
To my mistake I used 28.7, but to my surprise my system hung within 30 seconds, it's passed every other test we use, but not 30 seconds of Prime95 28.7.

So does that mean my system isn't truly stable?

Prime95 28.7, without crippling it, will frequently fail about 200-300MHz below what most commonly used CPU/cache tests will with the same voltages. The only change my signature system needs to pass 4.5GHz in AIDA64, x265, or Realbench, is increasing the CPU multiplier by 2.

As for "truly stable", that depends on your definition...but it is completely possible to pass arbitrarily long Prime95 28.7 runs with the right settings (it's a stable build used as a real distributed computing project by thousands of people, day in and day out). You do not necessarily need to be AVX2/FMA3 Prime95 stable to be stable in other CPU loads, but it's extrememly rare to encounter a CPU or cache instabilities that the correct FFT test of AVX2/FMA3 Prime95 won't find that something else will. However, Prime95 is a mediocre memory test, even with custom Blend, and cannot find any errors related to any other I/O (PCI-E/DMA etc).
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