[QUOTE=Aurum;418817]I definitely recommend 27.9 ... 27.9 usually fails a lot faster. Nevertheless there are some working combinations out there.[/QUOTE]

Just because I am interested in chaos, I would be interested in how things are going here.

Finding errors is useful, for those who are serious.

But what do I know? I don't even have a Bachelors....

[QUOTE=chalsall;418850]But what do I know? I don't even have a Bachelors....[/QUOTE]

After many years of mentoring new recruits with B.A.'s, B.Sc.'s, M.Sc.'s and even Ph.D.'s I know that none of them are a suitable substitute for an ounce (28grams) of common sense and a year of 'Real Life'. :smile:

[URL="https://www.youtube.com/watch?v=NcoDV0dhWPA"]How true...[/URL]

Just to see if and to what extent the problem is related to overstressing the processor, on a Skylake machine that reliable fails to run Prime95, can someone underclock the machine until it runs a succesful LL test?

Underclocking the machine won't solve the problem:

CPU: 3 GHZ
Cache: 3 GHZ
Ram: 2 GHZ

Worker stopped after 59 minutes: [url]http://www.bilder-hochladen.net/files/big/hb0a-9w-c8c7.jpg[/url]

[QUOTE=Prime95;418666]Too vague. Improving:

1) Use Skylake 6770(either K or non-K) with hyperthreading enabled.
2) Use Windows 64-bit (problem can also be replicated using Linux).
3) Run version 27.9 of prime95 available at [URL]ftp://mersenne.org/gimps/p95v279.win64.zip[/URL]. Run a torture test. Choose custom from the dialog box. Select 8 threads, 768 min and max FFT size, in-place.
4) Failure usually occurs within an hour.[/QUOTE]

are additional i7-6700k test results desired? if so, what data elements of the setup are required in the test report? I have two non-ASRocks...

[QUOTE=Dubslow;418816]What about 27.9? Just to be sure. And it's been reported that a small fraction of Skylakes do work correctly.[/QUOTE]

And indeed with prime95 v27.9 I got failures overnight, the 1st one after 1 hour and an half !

My configuration :

intel 6700K @ 4.5 GhZ + enermax watercooling kit
MSI gaming M7
SSD samsung 850 EVO
2x16 Gb Corsair low profile @ 3 GHz
inno3D GTX970 superclocked
Alim enermax platinium 850w


I'll try again with stock frequencies but my cpu ran stable with mixed fft lenghts for hours. It also pass Linpack stress test for hours.

I feel that my computer is stable enough for ecm and msieve normal jobs but this bug worries me for longer computations.

Best regards,
Philippe

Is it possible for you to get the crash on 28.7 after perhaps a longer period of time? It would be reassuring to me.

My 20 months daughter tends to shut down (and up and down...) my computer as soon as she is awaken but I'll give a try.

[QUOTE=dh1;418916]are additional i7-6700k test results desired? if so, what data elements of the setup are required in the test report? I have two non-ASRocks...[/QUOTE]

Yes!

Report back with success/failure as well as the motherboard and RAM configuration. Do not overclock.

Even better would be to report the problem to the motherboard manufacturer. Encourage them to try to reproduce the problem and contact Intel.

[QUOTE=Phil MjX;418949]
I'll try again with stock frequencies[/QUOTE]

Please do. Then report the issue to MSI.