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On June 14 2013 16:06 Cyro wrote:nsfw? + Show Spoiler +![[image loading]](http://i.imgur.com/DPKbeLN.png) As a slight update to this i 0x0124 bluescreened while writing post, put system agent to +0.165v, 0x0124'd while on windows load screen, so put it to +0.18v and doing extended testing soon. Default values might be different for different boards, and i'm sure different CPU's will like different amounts of everything. VRIN, system agent, and i hear analog+digital IO can all have large effects on the vcore you need to be stable, or if you are stable at all at a certain overclock - I've failed 4.5 at 1.21vcore before but i'm seemingly comfortably below 1.16 now which is not a small gap. I had a LOT of trouble stabilizing 4.6 without really big vcore increases, and new knowledge+understanding will probably make it easier The more i come to understand Haswell, the more it seems like first impressions of myself and pretty much everybody else were wrong.
where did you get that background? pls, let me know. lol.
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United Kingdom20343 Posts
Secret 
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On June 18 2013 12:42 JDI1 wrote:Show nested quote +On June 18 2013 12:27 Spec wrote:
Does it necessarily matter that you BSoD after such a long prime95 session?
I've been using 4.4ghz @1.152V for quite a few days now. It's passed pretty hard IBT but only 30 minutes of prime95. I don't know if there's something you normally do that'd actually be equivalent to 30 minutes of torture test, let along 2-3 hours. What is the normal bench mark for stability testing? I thought IBT is most likely enough. That's what I think too, even though I thought IBT is supposed to be more strenuous than prime95. I learned how to overclock when IBT still wasn't around yet and prime95's blend test was the stress test of choice. Not sure how the new AIDA 64 and others stack up though.
There are some people that like AIDA64 the most.
I think there's various client programs for Folding@Home, for graphics cards and for the CPU. That could be neat and make the testing feel somewhat useful.
This is about Ivy Bridge:
After prime95 ran for a day, the PC seemed to run perfect, no programs suspiciously crashing anymore, etc. There were still those "WHEA" warnings in the Windows event viewer. Those disappeared after adding about 0.02 V.
It looked like this:
at 1.215 V, IBT ran fine
at 1.235 V, prime95 ran for a day
at 1.255 V, WHEA warnings are gone
Despite that increase in temperature with IBT, prime95 found errors while IBT ran fine. The PC also was definitely not stable in practice. It sometimes crashed with a BSOD or programs stopped.
I have a hunch it's because I did run prime95 for hours and hours, while IBT for a much shorter time. IBT could perhaps be just as good as prime95, but it just never ran for something like 12 hours. I kind of don't want to use it for that long. You can still use the PC to do light stuff like web browsing while prime95 is running.
In hindsight, I should have done a lot less testing. The perfect lowest possible voltage to run prime95 still had those WHEA warnings. There are four 0.005 V steps in between that test and the PC running perfect. I should have done testing in much larger steps, perhaps 0.02 V.
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On June 18 2013 22:00 Ropid wrote:Show nested quote +On June 18 2013 12:42 JDI1 wrote:On June 18 2013 12:27 Spec wrote:
Does it necessarily matter that you BSoD after such a long prime95 session?
I've been using 4.4ghz @1.152V for quite a few days now. It's passed pretty hard IBT but only 30 minutes of prime95. I don't know if there's something you normally do that'd actually be equivalent to 30 minutes of torture test, let along 2-3 hours. What is the normal bench mark for stability testing? I thought IBT is most likely enough. That's what I think too, even though I thought IBT is supposed to be more strenuous than prime95. I learned how to overclock when IBT still wasn't around yet and prime95's blend test was the stress test of choice. Not sure how the new AIDA 64 and others stack up though. There are some people that like AIDA64 the most. I think there's various client programs for Folding@Home, for graphics cards and for the CPU. That could be neat and make the testing feel somewhat useful. This is about Ivy Bridge: After prime95 ran for a day, the PC seemed to run perfect, no programs suspiciously crashing anymore, etc. There were still those "WHEA" warnings in the Windows event viewer. Those disappeared after adding about 0.02 V. It looked like this: at 1.215 V, IBT ran fine at 1.235 V, prime95 ran for a day at 1.255 V, WHEA warnings are gone Despite that increase in temperature with IBT, prime95 found errors while IBT ran fine. The PC also was definitely not stable in practice. It sometimes crashed with a BSOD or programs stopped. I have a hunch it's because I did run prime95 for hours and hours, while IBT for a much shorter time. IBT could perhaps be just as good as prime95, but it just never ran for something like 12 hours. I kind of don't want to use it for that long. You can still use the PC to do light stuff like web browsing while prime95 is running. In hindsight, I should have done a lot less testing. The perfect lowest possible voltage to run prime95 still had those WHEA warnings. There are four 0.005 V steps in between that test and the PC running perfect. I should have done testing in much larger steps, perhaps 0.02 V.
I have a similar example... 4.6Ghz at 1.23V passed the Very high test x10 on IBT no problems, at 88c. But it failed x264 around 20% of the second pass even though it was only around 75c. I needed 1.245V to finish getting 4.6 completely stable as far as I could tell. I have since dropped down to 4.5 @ 1.18v, but IBT seems to only get you on the edge of stability, but both Cyro and I seem to need a couple more voltage UPS before getting fully stable. When I had 4.4 on like 1.1 (pass IBT but would have failed others) I crashed in SC2. So if you can't pass thirty minutes of Prime, id consider upping your vcore a bit.
@JD: the CPU will reach its "terminal temperature" so to speak after maybe half an hour of prime or any stress test imo. If you haven't crashed by then its probably a voltage issue. Have you only touched vcore?
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On June 18 2013 20:17 Cyro wrote:Secret
pl0x halp. I want to has it pleeeze ^_^
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So I am running the i5 at 44x 1.152v with Asus Z87-A mobo.
Temp at idle is low 40s and max load around mid 70s.
The thing is that I saw someone with 44x with 1.14v. So I tried to go back in to drop the voltage to see if it'd be stable, but even though my bio is set at 1.14v, cpu-z still shows 1.152v.
Is anyone familiar with Asus Z87-A? Am I overlooking something?
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The voltage display jumps in pretty large steps. It's also only a guess. You have no choice but to trust there's a change with a different setting in the BIOS.
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United Kingdom20343 Posts
Trust what you set in the bios, not what CPU-Z says. If you can hold 44x at 1.14v (pass 10x run ibt max ram, other stress tests etc) then that's pretty nice
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United Kingdom20343 Posts
Yea man i jumped on it straight away
I guess i didn't update this thread very much recently, i didn't want to flood etc, i should throw that in OP, and make a big update to it at some point. I've felt busy, ever since i got new build stuff (:
talked to sin a little nearer the end of the thread too
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Cyro hurry up and do updates and stuff for all of us lazy kids 
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United States7481 Posts
cross-posting this here in case anyone has some ideas.
CPU VRIN Override LLC: Extreme
CPU VRIN Override Voltage: 1.9
VCore: 1.238 (I typed in 1.24 and 1.241 but both times it went to 1.238)
Ring Voltage: 1.15
CPU Multiplier: 44x
c1e, c3, c6/c7, and eist: on
My GPU is at stock.
I tried some brief OCing a couple weeks ago and validated it with a little while of AIDA64 before booting up some games and noticing lower FPS, so I reverted to stock and forgot about it for a few weeks until I was less busy.
I'm back today and testing with 3dmark Firestrike (not extreme)
When I had my CPU at stock, I had Graphics Score 8162 and Physics score 10547. Pretty much what I expected looking elsewhere.
When I Overclocked, my physics score went up to 12489, but my graphics score plummeted to 4676.
I logged CPU temps, and they went about 5c higher under load. I think that's reasonable. I also logged everything GPU-Z logs and nothing looks out of order there either. I can share these logs on request.
Anyone have any ideas about this?
4770k, gtx 770 2gb windforce
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Is your GPU still hitting the right clocks and temps?
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United States7481 Posts
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United Kingdom20343 Posts
I got no idea sorry (or i would have posted in i think the ocn thread where i saw it before)
Im still hitting wall getting past ~4.5 with ht on, or ~4.7 with ht off
Prime 24 hours passed at 1.33vcore with avx disabled (i never saw anything but 0x0101 bluescreens past ~1.32vcore), i got an x264 fail at 1.38 with low cpu load, temps didnt hit 75. AVX enabled 4.7 ht off passes x264 below 1.3v, avx enabled or disabled toggling ht on fails it at 1.38vcore?? http://i.imgur.com/oS1e0ii.pngThere you see a pass, and my temps with x264 (current) and max temps (from ibt 10x standard pass) with avx off. Toggle avx on, no change to x264 temps or stability. Works fine. Toggle ht on, add 0.05vcore and drop 100mhz? fails within a minute, 0x0101 and locks up before or during the crash dump
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I've been trying to overclock my 4770k on a asus z87m-pluss but I'm having issues.
I started with something simple: x42 with 1.25 volts. After 1 hour of OCCT I had no issues, but when I load of SC2 and plays a game for 12 minutes the PC just reboots without any BSOD. I've always experienced the same with just having my computer almost idle (watching streams) and the computer just reboots without any errors. It seems like standard clocks is the only thing that works for me, what can be the issue of this?
Thanks.
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United Kingdom20343 Posts
What cooling?
And i'd lower your vcore. Try 1.15 first if you can, manually set the cache/uncore ratio to 34. If you can as well, set the CPU voltage regulator input voltage or VRIN to 1.7v (NOT THE VCORE, IT IS A SEPERATE SETTING, by taking any tips you agree that i am not liable for any damages in miscommunication because 1.7vcore would break stuff if you set that..)
And also, you can apply llc to cpu input voltage (vrin), i'm not sure what that one is called on Asus. The same voltage that you set to 1.7. Another thing you can do is increase digital io voltage by +0.05v offset.
I'd guess what's happening is just that you didn't control the cache/uncore manually and it's doing stuff that you don't want it to do
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You're probably correct, going to try that.
I have an h80i (bad choice, lol)
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So CPU core voltage is vcore and CPU cache voltage override is vrin?
I also have one that is CPU input voltage (VCCIN) I think that's more likely to be the vrin
You wanted me core ration to 42 but the cache ration to 34? I have one min cache ration and one max cache ratio
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United Kingdom20343 Posts
Core voltage is vcore. Cache/uncore/ring voltage is uncore.
VCCIN is IVR input voltage (VRIN) i think, but please confirm before you set anything to 1.7 volts. It should be 1.8 by default - if you see that value, just bump it down to 1.7 (:
You wanted me core ration to 42 but the cache ration to 34? I have one min cache ration and one max cache ratio
Yes, min/max it to 34 and give cache/uncore/ring 1.1 volts
I've never seen asus z87 before and i'd rather not break anything so make sure you got the right ones (:
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EPT![[image loading]](http://i.imgur.com/Ayt8Ukw.png)
