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post #21001 of 22487
Quote:
Originally Posted by MIXEDGREENS View Post

This is as close to a stress test as I'm willing to run at 1.428v on a Hyper 212.

Typing this at 4.8ghz, 1428mv vcore 2128mv VCCIN, +42mv on both from 4.7. Never even had this CPU make it to desktop at this speed.

Holy cow, that's a lot of voltage for that poor little 212. redface.gif

Humm... Your findings are certainly interesting, so I don't want to dismiss your theory as false just yet. I will be back home on Saturday most probably, so I will test on mine then and see what I find.

Also, I'm kind of thinking that that RAM speed is killing your CPU overclock. What are you able to get at lower RAM speeds?
Quote:
Originally Posted by Kamikaze-X View Post

so if I'm reading this right, if I increase voltage on the vccsa it could lead to not needing as high a voltage on the core?

Yes, but under the condition that your memory speed is what's causing your CPU to need higher voltages. If you're using 1600MHz memory I highly doubt adding VCCSA would do much. Wouldn't hurt to try, though.

Quote:
Originally Posted by GeneO View Post


Appears pretty much so, around 0.850 (I think mine was 0.860 ).

If you have memory OC, you might need to adjust ioa and iod volts. For the 32 GB I have, I had to adjust vccsa, ioa and iod. I could have a higher vccsa with lower ioa an iod - it was a balance. I have vccsa +0.08, iod +0.135 and ioa +0.090 to OC 32 GB of 1866 to 2200 MHz

.

Would you mind posting your exact actual voltages for each of those? Preferably the values shown in HWiNFO. Most mobos have them only as offsets, but not knowing the actual value makes those offsets pretty useless. This doesn't go to you only, but to everyone. +0.1V for LostParticle means 1.1V VCCSA with his ~1V default, whereas it means about 0.92V for me. smile.gif
post #21002 of 22487
Quote:
Originally Posted by tolis626 View Post


Would you mind posting your exact actual voltages for each of those? Preferably the values shown in HWiNFO. Most mobos have them only as offsets, but not knowing the actual value makes those offsets pretty useless. This doesn't go to you only, but to everyone. +0.1V for LostParticle means 1.1V VCCSA with his ~1V default, whereas it means about 0.92V for me. smile.gif

I don't mind but do you think they will be useful to anybody? They are meaningless to someone else's system and particularly since you don't know details of my memory overclock.

My point was that for a memory overclock, you should not only consider adjusting vccsa, but also ioa and iod. I had limits I wanted to stay within for all of these: vccsa < 0.9, ioa and iod < 1.15.

The reported max for these are (as I am watching todays TDF stage): vccsa 0.896, iod 1.154 and ioa 1.104.
post #21003 of 22487
Quote:
Originally Posted by tolis626 View Post

Also, I'm kind of thinking that that RAM speed is killing your CPU overclock. What are you able to get at lower RAM speeds?

About the same or a little worse, actually. I did my first few core OCs before I knew the first thing about RAM OCing though, so that was with untuned latency figures.

I doubt I'll bother to ever put the time in to tune a slower RAM speed just to find out my core still scales the same.
post #21004 of 22487
This might be a dumb question but how do you guys determine how your PC crashed if you weren't around to see it? I fell asleep on the couch with my PC running netflix and woke up to it reset on the logon screen (meaning it must have crashed in the middle of the night). I checked event viewer but cant really find anything aside from a couple errors with ready boot which I have no idea what that is either but it seems unrelated. One crash not a big deal but would be nice to know where to find these errors if it happens again.
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post #21005 of 22487
Quote:
Originally Posted by dmfree88 View Post

This might be a dumb question but how do you guys determine how your PC crashed if you weren't around to see it? I fell asleep on the couch with my PC running netflix and woke up to it reset on the logon screen (meaning it must have crashed in the middle of the night). I checked event viewer but cant really find anything aside from a couple errors with ready boot which I have no idea what that is either but it seems unrelated. One crash not a big deal but would be nice to know where to find these errors if it happens again.
either you learn how to read windows crash dumps or send it to Microsoft smile.gif Maybe something overheated?
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post #21006 of 22487
Its air cooled so it is fairly redundant. Still running fine now after all day use. I will assume it was a fluke tongue.gif. Could also have possibly had been a power surge of some sort I suppose.
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post #21007 of 22487
My 5.1G 4790K is finally getting what it deserves..... a proper Mobo!
Asus Maximus VII Formula biggrin.gif



CPU: 5.1G 4790K


Warning: 5.1G 4790K Stress tests 100% stable!!! (Click to show)
1Hour


4Hours


8Hours




5.4G for the lolz biggrin.gif



thumb.gif
post #21008 of 22487
@fat4l
Sweet biggrin.gif
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post #21009 of 22487
Quote:
Originally Posted by tolis626 View Post

Well, mine defaults at about 0.82V if I remember correctly. With my current offset (+0.175V) it fluctuates between 0.992V and 1V. At higher overclocks it scales with a bit more too, but for what I'm doing, 1V is all it needs.

Some mobos, I found, will drastically increase VCCSA when using high speed RAM. It was first mentioned here, then I did some research. I think up to 1.2V should be OK, but I wouldn't go over 1.1V for my system.

Also, I don't know what gains you can expect. My CPU has a weak IMC so it greatly benefits from the added VCCSA. It even makes a big difference with 2133Mhz RAM, so you get the idea.

You may also want to tinker a bit with I/O voltages, but those aren't nearly as important.

Anything you might need, ask me and I'll help if I can. smile.gif

Thanks a lot, man, +REP!

I will give it a try but not this period due to the heat.

Here's my ASRock's optimized defaults under stress testing (XMP_1 profile loaded):
Warning: Spoiler! (Click to show)

Similar test under the predefined x47 OC profile my motherboard offers. I've reduced its crazy 1.4 VCore to 1.220V
Warning: Spoiler! (Click to show)

Finally, my settings for these specific values:
Warning: Spoiler! (Click to show)


My guess, and it is just a guess, is that the ASrock Z97 OC Formula sets such high System Agent and IOA + IOD values by default because this motherboard was intended for Memory overclocking so they wanted to give a good start to the user.

To ALL, an OFF TOPIC request! Guys, I've started a new thread, [Linux Mint 18 Sarah]: a couple of questions, in which I'm struggling with a couple of newbie-ish inquiries. IF anyone of you has some experience in Linux, please visit my thread and reply. I assume that my questions are fairly simple but for some unknown to me reason, I am not getting the responses / support I was expecting... Thanks a lot! thumb.gif
Edited by LostParticle - 7/15/16 at 4:30am
    
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post #21010 of 22487
The Z97 X4 also uses high Vccsa,ioa,iod when you set them to auto, select XMP and OC the CPU. +150 to +300mV, I've set them to half of that for 2400MHz XMP, SA 0.975V IOAD 1.1V, which is +100 to +150mV. I can't be bothered to test lower settings but I think the stock unraised wasn't stable with XMP. There is really no noticeable power difference unlike lower Vccin.
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