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post #19631 of 19696 (permalink) Old 11-29-2017, 02:55 AM
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That is music to my ears! I've posted in the haswell owner's thread and also in Fernando's forum to try and get some more people testing this.

I've never tried per-core overclocking, what kind of voltage does it run when a single core is at 5GHz? Maybe I should give that a try too!

Am I jumping the gun a bit thinking this is a universal improvement? Yes, definitely. Should people still try it for themselves and come back with their own conclusions? Absolutely. Am I far, far too excited about this? You bet I am. biggrin.gif

EDIT

Should I make a new thread about this? Maybe if others come back with positive results? The instructions are already getting buried in this thread, it might be worth doing.

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post #19632 of 19696 (permalink) Old 11-29-2017, 06:32 AM
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Quote:
Originally Posted by d0mini View Post

That is music to my ears! I've posted in the haswell owner's thread and also in Fernando's forum to try and get some more people testing this.

I've never tried per-core overclocking, what kind of voltage does it run when a single core is at 5GHz? Maybe I should give that a try too!

Am I jumping the gun a bit thinking this is a universal improvement? Yes, definitely. Should people still try it for themselves and come back with their own conclusions? Absolutely. Am I far, far too excited about this? You bet I am. biggrin.gif

EDIT

Should I make a new thread about this? Maybe if others come back with positive results? The instructions are already getting buried in this thread, it might be worth doing.
Yeah make a thread!

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post #19633 of 19696 (permalink) Old 11-29-2017, 07:22 AM
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Well, last post - final thoughts, from me, on this matter smile.gif

So, besides my new stable OC profiles, all_core x 49, all_core x 47 with reduced VCore, I've finalized my per_core OC, as well: x49 x49 x 50 x 50. 5100 MHz, even on one core is out of the question for me: I boot all right, I run Outlook 2016 and my browser but as soon as some load is given, like a full scan with Defender, it crashes. No problem, I was not expecting it to work anyway. When it comes to my per_core I've just raised the lowest core from x48 to x49. I might try to set the rest of the 3 cores at x50, actually I did, but I am facing a crash in Excel 2016, trying to sort a big file, more than 65000 rows. Perhaps though this is a problem of a recent Excel update. Most probably, that it is!

This microcode update, and the rest of them as well, have really helped me and improved my system.


@d0mini, you could create a new thread but, personally, I would wait for more people to present concrete results (with screenshots and all)

When it come to per_core? Here's my personal and subjective opinion, in a spoiler as it is off-topic.
Warning: Spoiler! (Click to show)
I had three i7-4790K CPUs. I purchased the first one. Two months later I replaced it via Intel's Protection Plan, because it could not stabilize at 4800 MHz, no-matter-what. The second one could do 4800 but it could not pass that limit -- and it needed around 1.4V for it... A year later I made use of Intel's Warranty and got my third chip, the one I'm still having. It was (is) the best overall, it requires less V, but it could not pass 4800, on all four cores (until this microcode update).

So, I started playing and using per_core. Intel uses it,so why not? I stabilized x48 x49 x49 x50, before the update, like this: I set one active core at x50, in the BIOS, and run the x264 for like 30 minutes. I already knew that my chip can complete 10 loops (x264) at x48 with 1.380V, override VCore in the BIOS. So... I set 1.4V adaptive in the BIOS, and called it a day! I am sure that "1000 serious overclockers" would laugh at me, at my method. For around two and a half years now, 5 - 6 months per year, winter time mostly, I am using this per_core profile! I do not recall if I have ever crashed... Perhaps once, I think? Something like that. Not more. I am not a demanding user, and this a Home computer. I do whatever I want to do, and it just works. Without any issue, ever! Perhaps it's worth mentioning that , under this profile, I have plenty of times installed the Insider builds Microsoft is developing, for Windows 10. I participate in that. No problem, ever. So, I have the right to call it "stable for me".

If one cannot reach further, per_core is the only way.

Thank you.

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post #19634 of 19696 (permalink) Old 11-29-2017, 08:20 AM
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I've gone ahead and made a thread, found here: https://www.overclock.net/t/1643053/needs-testing-improved-overclocking-for-haswell-with-updated-microcode. It would be great if any findings could be posted here so the information is easy to find.

If it turns out not to benefit everyone, so be it. The fact that I can reproduce the difference between microcodes and that LostParticle got similar results with a different manufacturer/motherboard is enough for me to do it. There's more detailed instructions in the thread for those looking to try this. I can add pictures if that would help.

And thanks a lot particle for the info on per-core overclocking smile.gif

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post #19635 of 19696 (permalink) Old 11-29-2017, 10:19 AM
 
 
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Those are awesome findings.
I updated the microcode to the latest recently but haven't tried to change my OC. I'm gonna experiment with a higher multiplier (46x) and trying to see how low I can get my VCore on my current multiplier, 45x.

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post #19636 of 19696 (permalink) Old 12-01-2017, 12:35 PM
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Quote:
Originally Posted by d0mini View Post

I've gone ahead and made a thread, found here: https://www.overclock.net/t/1643053/needs-testing-improved-overclocking-for-haswell-with-updated-microcode. It would be great if any findings could be posted here so the information is easy to find.

If it turns out not to benefit everyone, so be it. The fact that I can reproduce the difference between microcodes and that LostParticle got similar results with a different manufacturer/motherboard is enough for me to do it. There's more detailed instructions in the thread for those looking to try this. I can add pictures if that would help.

And thanks a lot particle for the info on per-core overclocking smile.gif
Sweet! New tools to play around with. Thanks for posting!
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post #19637 of 19696 (permalink) Old 12-02-2017, 04:42 AM
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No problem Shweller smile.gif I’m fairly surprised and really happy that the microcode update is helping so many people, even if it’s more in the range of a 0.02v improvement on average.

Everyone who has tested this has come back with positive results, it really is a universal improvement, for Haswell at least. Looks like some people want to try out Haswell-E which requires a few extra steps to work. It’s a different microcode for those CPUs, so only time will tell if they see the same improvements.

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post #19638 of 19696 (permalink) Old 12-04-2017, 12:48 PM
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Have to ask, I'm getting some random BSOD's. SYSTEM_SERVICE_EXCEPTION with ntsokernl.exe

Not sure if anyone has this or what to do about it. Is it related to RAM?
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post #19639 of 19696 (permalink) Old 12-06-2017, 06:49 PM
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No problem Shweller smile.gif I’m fairly surprised and really happy that the microcode update is helping so many people, even if it’s more in the range of a 0.02v improvement on average.

Everyone who has tested this has come back with positive results, it really is a universal improvement, for Haswell at least. Looks like some people want to try out Haswell-E which requires a few extra steps to work. It’s a different microcode for those CPUs, so only time will tell if they see the same improvements.
Thanks, haven't had time to tinker yet as I just completed my Kaby Lake build. I hope to get around to it sometime in the near future.
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post #19640 of 19696 (permalink) Old 01-05-2018, 11:54 PM
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Have to ask, I'm getting some random BSOD's. SYSTEM_SERVICE_EXCEPTION with ntsokernl.exe

Not sure if anyone has this or what to do about it. Is it related to RAM?

Last week, I had the same BSOD like yours (SYSTEM_SERVICE_EXCEPTION under ntoskrnl.exe), but this caused the Web Protection unable to turn on (Malwarebytes Premium) & component package version stuck with 1.0.0 (NVIDIA 388.71 & 16299.125)

Apparently, I run 'mb3-setup-consumer-3.3.1.2183-1.0.262-1.0.3374' then everything work accordingly.

Last month, I faced a BSOD caused by driver nvlddmkm.sys under ntoskrnl.exe address while editing FIFA 18 & ALT + Tab out frequently. (NVIDIA 388.43 & 16299.64)

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