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Skylake Overclocking Guide [With Statistics] - Page 873

post #8721 of 11368
Quote:
Originally Posted by f8torres3 View Post

Sorry for the dumb question but how do I run the x264 stress test? I read the readme and it says to use the "x264 Stability Test.bat" but it doesnt work for me. Running Win 10

Another member met that error when he started x264 test from Total Commander instead of Explorer.

http://www.overclock.net/t/1570313/skylake-overclocking-guide-with-statistics/7750#post_25274352
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post #8722 of 11368
Quote:
Originally Posted by Jpmboy View Post

that glitch was based on the early intel microcode for skylake which has been updated either with a more recent bios, or thru windows (which can override the bios MC). It was limited to specific FFTs and took ~ 1h to show up on an otherwise stable system.

Quote:
Originally Posted by HOODedDutchman View Post

So how come I can run any other stress test for hours and game for hours but 28.9 will error in like 30 minutes or less ?

Quote:
Originally Posted by HOODedDutchman View Post

Maybe I will have to try p95 again. After further research it says the bug caused freezing not errors and my bios was original bios for my motherboard and I've since updated. I don't really want to tho since it causes vrm overheating and throttling due to vrm overheating. Shows almost 130 watts while doing this in hwmonitor while max on any other program (ibt, occt) is 122 watts. I think it's better to just use 26.6 or turn off avx in 28.9. I doubt any of us will ever use it anyways.

I've got the latest bios which I presume has the latest microcode, and prime locks up my entire system within seconds.

It didn't used to do that.
post #8723 of 11368
So my chip sucks...kinda

4.3Ghz - 1.296v
4.4Ghz - 1.312v

Have yet to try higher. Temps are hitting 70-71C so I think that's my limit. I'm pretty happy with 4.4GHz but I was also hoping for more with less volts...
And that's with a delided chip! wonder if I re-do the CLU that it'd be any better but honestly I don't have the time...

Pretty happy with these cinebenchr15 scores... Hopefully I can match Kaby...



Ok...now on-to Cache overclock... I left it at auto which I believe is 4.1Ghz. Should I up that to say 4.4Ghz also?
Edited by Cakewalk_S - 8/30/16 at 5:34am
post #8724 of 11368
Quote:
Originally Posted by Deders View Post



I've got the latest bios which I presume has the latest microcode, and prime locks up my entire system within seconds.

It didn't used to do that.

Latest microcode (MC) is 9E;



IIRC, most Asus boards are still on 74. But locking up in seconds with P95 doesn't appear to be a MC issue.
post #8725 of 11368
First x264 test ran good overnight at 4.4 / 1.350v So if now I'm crashing at 4.5 /1.350v , what value icrement should i increase voltage by to adjust it to stop crashing?
Edited by f8torres3 - 8/30/16 at 6:38am
post #8726 of 11368
Quote:
Originally Posted by Cakewalk_S View Post

So my system is finally stable!

Realbench passes 8 hours so I know I'm pretty much there! Unfortunately it takes my chip like 1.30v to be stable at 4.3Ghz...
Here's some of my settings! Feel free to critique Warning: Spoiler! (Click to show)



]
some of your settings are "unusual"... what's with the negative offset on additional turbo voltage?
VCCIO and VSa are quite high. did lower values (or Auto) actually fail stability?
Why did you set a dram switching frequency?

be careful when changing bios settings when you do not fully understand what they do. smile.gif

Quote:
Originally Posted by Deders View Post

Not only that, but p95 only stresses the AVX part of the CPU, not the CPU as a whole so it is only good for AVX and generating heat.
this is so true. hammering the FPU with AVX or FMA3 does little betond generate heat, and thermally-induced errors. (which are not true logic faults due to processing frequency)
Quote:
Originally Posted by HOODedDutchman View Post

So how come I can run any other stress test for hours and game for hours but 28.9 will error in like 30 minutes or less ?
something else is causing failure in 30min... not the microcode glitch if it is in play at all. on many installs you will see that the MC loaded once the OS handshake takes place is not he same one as the Bios lists as present. Intel patched the MC via a windows update. (KB).
Frankly, IDK why one would care about p95 in this regard anyway... it's Jurassic stability testing left over from ancient architectures.
Quote:
Originally Posted by HOODedDutchman View Post

Maybe I will have to try p95 again. After further research it says the bug caused freezing not errors and my bios was original bios for my motherboard and I've since updated. I don't really want to tho since it causes vrm overheating and throttling due to vrm overheating. Shows almost 130 watts while doing this in hwmonitor while max on any other program (ibt, occt) is 122 watts. I think it's better to just use 26.6 or turn off avx in 28.9. I doubt any of us will ever use it anyways.
no need to try it again... do some encoding, run HCI Memtest, realbench for system-wide stability, and if you need to check a short duration high current load, 5-10 loops of IBT (if really necessary).

Quote:
Originally Posted by Deders View Post

I've got the latest bios which I presume has the latest microcode, and prime locks up my entire system within seconds.
It didn't used to do that.
that's sounds more like an undervolt issue. lower the multiplier one notch - still locking up?
And when you say "locks-up" what exactly is happening?
Edited by Jpmboy - 8/30/16 at 6:52am
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post #8727 of 11368
Quote:
Originally Posted by oparr View Post

Latest microcode (MC) is 9E;



IIRC, most Asus boards are still on 74. But locking up in seconds with P95 doesn't appear to be a MC issue.

Yep, mine is 74H. I presumed locking up completely was the 2nd Skylake related prime issue as it seems to be the big one that Intel was involved in trying to resolve. Before that it would just fail one worker on a particular task.

Up until the most recent version of P95, I would get that bug, on the most recent I get a complete system freeze within the first few mins.

Everything else is absolutely fine.
post #8728 of 11368
Quote:
Originally Posted by Jpmboy View Post

Quote:
Originally Posted by Cakewalk_S View Post

So my system is finally stable!

Realbench passes 8 hours so I know I'm pretty much there! Unfortunately it takes my chip like 1.30v to be stable at 4.3Ghz...
Here's some of my settings! Feel free to critique Warning: Spoiler! (Click to show)



]
some of your settings are "unusual"... what's with the negative offset on additional turbo voltage?
VCCIO and VSa are quite high. did lower values (or Auto) actually fail stability?

Actually I'm not sure! I first though it was those values but now I'm pretty sure I wasn't giving my chip enough volts... I'll put them back on auto and see what I get. Maybe my temps will go down some with those volts being lower...
post #8729 of 11368
Quote:
Originally Posted by Deders View Post

Yep, mine is 74H. I presumed locking up completely was the 2nd Skylake related prime issue as it seems to be the big one that Intel was involved in trying to resolve. Before that it would just fail one worker on a particular task.

Up until the most recent version of P95, I would get that bug, on the most recent I get a complete system freeze within the first few mins.

Everything else is absolutely fine.

No, IIRC, lockups were never Skylake bug symptoms only worker errors. Which torture test are you running? If it's small FFTs then chances are the lockups are insufficient Vcore related. If running the default Blend then chances are it's memory related since memory stressing is how Blend starts off. This is just a quick and dirty rule of thumb and exceptions are bound to exist.
post #8730 of 11368
Quote:
Originally Posted by Jpmboy View Post

that's sounds more like an undervolt issue. lower the multiplier one notch - still locking up?
And when you say "locks-up" what exactly is happening?

It was this paragraph that made me think it was the bug:

"This may seem like Intel's sugar-coating it, but the bug is truly sporadic. Some people have run into it, while others can’t reproduce it. The hang sometimes occurs after minutes, sometimes hours, and others never experience the lockup."

http://www.pcworld.com/article/3021023/hardware/how-to-test-your-pc-for-the-skylake-bug.html

Basically the system freezes up and I have to hold down the power button to restart.

I guess the variables are a newer bios as well as a newer version of prime, but I am reluctant to raise my voltage any more for P95 when everything else is perfectly stable.
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