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Kaby Lake Overclocking Guide [With Statistics] - Page 186

post #1851 of 2909
Quote:
Originally Posted by Grimz Reeper View Post

hey all! can anybody shed why i can't reach 5Ghz on my CPU now that I've changed boards? i was using a Maximus IX Code that i recently sold for reasons, and now am using Maximus IX Hero. Voltages were 1.32v idle on the Code, and now this 1.4124 @ 5Ghz idle with the hero....way too high and locks up and isn't stable.

Can anyone shed some light? or a method on how to reach that magical 5Ghz on this board is possible?

Cheers!

Did you had your overclock dialed in manually in bios before or was it everything on Auto ?
If everything was on auto, did you tried using AiSuite ? or KeyBot (Keynote...can't remember the exact name)..rolleyes.gif
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post #1852 of 2909
Quote:
Originally Posted by becks View Post

@Jpmboy

Reporting in... Turbo V in bios 1.376 with adaptive + llc 6 = Stable RB 2.43 with v under load 1.392 ( 109w Cpu and 112w Cpu package)....temps 76-76-73-73.
It seems I have a really mediocre chip....I hit Trump wall at 5.1, tried even 1.440 in bios for 5.2 and BSOD at 15-20 mins into RB (temps in the 80 ssh)
Cache is at 48, everything else on default/auto.
Is there anything I could bump to help with 5.2, 5.3 ?
Maybe if I apply more V to PCH ? idk...
Still working on lowering volts...will try to lower to 1.375....1.374 and see what happens.
Freq and Volts are going up and down correctly now ( 800 - 5.100.....0.600 - 1.392)
Found it interesting that if I go with 1.387 + llc 5 in bios I get same result as 1.376 + llc 6 but a bit more W on the Cpu/Cpu package and more heat...

Next on my list are, lower volts, than cache....if I can get away with 5.1 core / 5.1 uncore will suffice. biggrin.gif

AVX is generating quite alot more heat so I would start with an offset of 2-4. If you're not using softwares daily with AVX instructions then there's no use of it anyways. For gaming you will see absolutely no benefit for it (yet).

Try manual fixed voltage. RealBench is doing fluxuating load to simulate real life usage and causes frequency and voltage fluxuation which could cause instability at certain frequencies where the voltage is not enough. Voltages are not linear to frequencies. If it's stable with manual, then go back to adaptive but add a really small offset, like 0.02-0.05 V and lower the turbo voltage by the same amount giving you the desired total Vcore. This last step resulted in stabilizing my 4.8 GHz with AVX offset. At 4.8 GHz it was stable but once AVX was detected it dropped to 4.5 GHz but didn't get enough voltage and crashed.

On my board and probably on others LLC level 5 gives the closes Vcore to the set value under load. Setting IA AC / DC load line to 0.01 should help with more stable voltages.

If unstable but you can't increase voltage more because of heat, try lowering RAM speed and voltage (try 1.2 V between 2133-2800 MHz with default timings or even a bit looser). That should decrease temperatures by 3-10 degrees. Instability can be caused by too much heat as well because of electromigration.

You can lower cache frequency to 47-46 and see if it's more stable. Cache speed doesn't result in much gain anyways. See guide in first post or you can benchmark it for yourself.
Edited by dirtyred - 4/13/17 at 4:08am
    
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post #1853 of 2909
Quote:
Originally Posted by becks View Post

Did you had your overclock dialed in manually in bios before or was it everything on Auto ?
If everything was on auto, did you tried using AiSuite ? or KeyBot (Keynote...can't remember the exact name)..rolleyes.gif

I just set the oc profile to the asus 5ghz oc profile. Im a bit daft with this new chip so can anyone shed liggt on how to do it manually? Forcing voltage?
post #1854 of 2909
Quote:
Originally Posted by Grimz Reeper View Post

I just set the oc profile to the asus 5ghz oc profile. Im a bit daft with this new chip so can anyone shed liggt on how to do it manually? Forcing voltage?

Read the guide in the first post. Or this.
    
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post #1855 of 2909
Quote:
Originally Posted by dirtyred View Post

Read the guide in the first post. Or this.

No worries, will do!
post #1856 of 2909
Quote:
Originally Posted by dirtyred View Post


RB 2.43 that I have does not use AVX or if it does.....the avx is not working wright.
When I use Aida stress test.. or other stress tests that use AVX... it is detected right by my CPU and it drops its Freq to 5.0 and stays stable..
In RB i don't see any of those drops in Freq and assume it is not using AVX.

A AC / DC load line works the same for me either on Auto or 0.01.

My problem is that I cannot go past 5.1 .... not even when I provide the CPU 1.440v manual in Bios. Its Cinebench Stable....Aida Stable...CPU-z stable but not RB stable.. and For my "stable" I want at least 1h of RB with 100% ram.
And also, adaptive helped me run lower volts in bios than on manual..
On manual I had to run 1.385 in bios...which reads 1.392 in Os and in RB temps of 79-80
On adaptive I have 1.376 In bios...+ llc 6 ...which reads 1.392 in Os but temps in RB are lower...and the Wattage on CPU and CPU package is lower...and the fact that OS reads v in bins of 0.16 (if I remember right) it seems using adaptive and llc6 makes me get real/actual lower volts ( being on the low side of the bin)...haven't used my multi yet so its just guesses.
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post #1857 of 2909
Quote:
Originally Posted by Grimz Reeper View Post

hey all! can anybody shed why i can't reach 5Ghz on my CPU now that I've changed boards? i was using a Maximus IX Code that i recently sold for reasons, and now am using Maximus IX Hero. Voltages were 1.32v idle on the Code, and now this 1.4124 @ 5Ghz idle with the hero....way too high and locks up and isn't stable.

Can anyone shed some light? or a method on how to reach that magical 5Ghz on this board is possible?

Cheers!


Try following these steps, you got the same settings on your MB.
Edited by Spiriva - 4/13/17 at 5:38am
post #1858 of 2909
Quote:
Originally Posted by becks View Post

RB 2.43 that I have does not use AVX or if it does.....the avx is not working wright.
When I use Aida stress test.. or other stress tests that use AVX... it is detected right by my CPU and it drops its Freq to 5.0 and stays stable..
In RB i don't see any of those drops in Freq and assume it is not using AVX.

A AC / DC load line works the same for me either on Auto or 0.01.

My problem is that I cannot go past 5.1 .... not even when I provide the CPU 1.440v manual in Bios. Its Cinebench Stable....Aida Stable...CPU-z stable but not RB stable.. and For my "stable" I want at least 1h of RB with 100% ram.
And also, adaptive helped me run lower volts in bios than on manual..
On manual I had to run 1.385 in bios...which reads 1.392 in Os and in RB temps of 79-80
On adaptive I have 1.376 In bios...+ llc 6 ...which reads 1.392 in Os but temps in RB are lower...and the Wattage on CPU and CPU package is lower...and the fact that OS reads v in bins of 0.16 (if I remember right) it seems using adaptive and llc6 makes me get real/actual lower volts ( being on the low side of the bin)...haven't used my multi yet so its just guesses.

LLC 6 almost for sure will give more voltage then set. Also voltage is always oscillating, not a straight line and never trust voltage meters. Voltage can spike only for split seconds or miliseconds and you (software) won't notice. You need an oscilloscope for that to detect. So the voltages you set are never exactly what you set or what you measure by software. It's always an average measurement. Just like 220 V from the wall socket that's only 220 by average.

Forget Cinebench, it's not an accurate representation for stability. Just like booting into Windows isn't. Aida is not bad but it's not generating enough load and it's constant load. That's why it's relatively easy to pass.

RealBench stress test uses a combination of softwares like 7-Zip, Blender (Luxmark rendering), x264. Those all use AVX code. You might not see frequency drops because either your monitoring tool is not refreshing fast enough or because not all cores are doing AVX computations at the same time. The only issue with RealBench is that it's not a realistic scenario (Asus claims that it's the most realistic). Who's doing 3D rendering while encoding x264 and compressing files?! I don't. And don't think many others either.

There's also a newer RB version out: http://dlcdnmkt.asus.com/rog/RealBench_v2.54.zip?_ga=1.76815831.399520072.1491942636.

In my opinion the best way to test stability is to actually use the PC. Test with the softwares that you use for work or gaming. I use 3D Max with Corona Render. I open up a demanding scene (13 GB in RAM) and do a 1-2 hour render test. GTA V is also good for testing games as it stresses both the GPU and CPU and you can edit the launcher config to make it loop. If I test those tests then it's good enough for me. I'm not doing nuclear research to need 101% stability. Even nuclear reactors fail sometimes.
Edited by dirtyred - 4/13/17 at 6:22am
    
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post #1859 of 2909
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Originally Posted by dirtyred View Post


Agree on that, but as I said I think the v are actually lower due to Wattage used and lower temp, at same freq with same test on the same PC rolleyes.gif but yet again it might be just margin of error..

Still testing, the trouble is that I work so much ...I only have like 2-3 h / day to put my hands on it...that's like 2 RB runs and 3 bsod's and that's it
Will report later how its doing but still need any advice that might help me go 5.2...5.3 without going over the top with volts...maybe i'm missing something in bios...biggrin.gif
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post #1860 of 2909
Quote:
Originally Posted by becks View Post

Agree on that, but as I said I think the v are actually lower due to Wattage used and lower temp, at same freq with same test on the same PC rolleyes.gif but yet again it might be just margin of error..

Still testing, the trouble is that I work so much ...I only have like 2-3 h / day to put my hands on it...that's like 2 RB runs and 3 bsod's and that's it
Will report later how its doing but still need any advice that might help me go 5.2...5.3 without going over the top with volts...maybe i'm missing something in bios...biggrin.gif

Maybe your chip can't handle 5.2. Does it worth the effort to squeeze out even the last MHz? I'd settle with 5 GHz if it's stable and you're not preparing to win any OC competition.
    
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