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Vcore problem with i5 3570k/ help with 3570k oc

post #1 of 16
Thread Starter 
Hello guys ,
I am new to the forum so if I make mistakes please tell me.
My system:
I5 3570k @4,3 ghz
8gb ram @ 1866 (for oc testing 1333)
Asrock z77 exteeme 6
Gtx 1070 gaming x running @ 2075 mhz
Cpu cooler alphacool eisbear 360

Now my problem: I have set the vcore in the bios to a fixed 1.205v and my oc is stable at 53C max temp with aida64 stress test for 2 hours,but cpuz shows a vcore of 1.336v wich really scares me . Is it a software problem or is my cpu acutally running with 1.336v ?
Thx in advance
Ps: I am not a native speaker.
post #2 of 16
More than likely it's a reading thats not accurate in CPU-Z, 1.36v's is OK as long as your temps are within tolerance.

Sometimes CPU-Z will not report CPU voltage correctly because one or more sensors on the board or chip itself isn't accurate and thats where CPU-Z gets it's readings from.
If you have a place on the board where you can directly measure voltage such as a testing point made into the board itself like what Asus has in it's ROG belt you can measure it and see how much it's actually getting.

However the temps you reported looks to be fine, I woudn't worry about it much as long as it's running like it is now.
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post #3 of 16
To add a little to what Kryton said, Asrocks boards of the Z77 generation were known to have dodgy voltage reporting so it could also be something to do with that. Only way to tell for sure would be with a Multimeter

Also possible, if you set LLC to the highest level as many guides seem to recommend, that it actually pushes through more voltage then you set manually. Not sure about that on Asrock boards, but even if this was the case I'm pretty sure it wouldnt push as much more on top as you are getting, could be part of it though, you could test by lowering the LLC level and checking in a stress test if that's the case.

You could also try some other monitoring software like HWInfo, and see if it reports the same.

In short I agree with the above, been running my 3570k at about the same voltage as your CPUz is reporting for 4 years, though Ive used offset so it idles lower, without a problem. Ive run Folding@home on the CPU for quite a lot of hours on it at that voltage and also put 1.48 volts t'through it a few times benching 3d Mark, it's still running without a hiccup.
post #4 of 16
Thread Starter 
Hey guys thx for the help.
So my llc is lvl 1 as a guide said.
But if i only do an 4.1 ghz oc with the Same settings cpu-z only reads out 1.205v (what i Set in the BIOS). So the Problem only comes with the 4.3 oc. I will now try to Set the llc to 3 or 4.
post #5 of 16
Try using Hwinfo at the same time as CPUz, see if they report the same when you check.
post #6 of 16
Thread Starter 
With the 4.3 oc with llc at 5 its now only reporting a 1.270vcore.
post #7 of 16
Thread Starter 
Hwinfo Reports Vid with 1.36v at the Same time cpu-z reports 1.27v.
post #8 of 16
Try the software "HWINFO" instead of CPU-Z. Open its sensor window and look for Vcore somewhere in there.

Maybe the CPU-Z version you use has a bug and is reporting "VID" instead of "Vcore"?

The temperatures you report are too low for a real voltage of 1.336V so it probably is really using something close to those 1.205V you've set in the BIOS. The hottest software you can use to test is "IBT = Intel Burn Test". Using that, I think you should see something like 100°C at 1.336V. I don't know how close the Aida64 stress test is to what IBT does. I think if you only use the "stress FPU" check box by itself, then you should get similar temperatures as with IBT.

EDIT:
Quote:
Originally Posted by maiestes View Post

Hwinfo Reports Vid with 1.36v at the Same time cpu-z reports 1.27v.

You need to look for "Vcore". The "VID" is not a real voltage. Vcore is the real voltage that the CPU uses.
Edited by deepor - 10/6/16 at 11:04am
post #9 of 16
I'lll just echo the 'VID is not Vcore' smile.gif

VID is the amount of voltage that your CPU is requesting from the motherboard, that number is then possibly modified by various settings in the BIOS and Vdroop under load, you can basically ignore VID in this case.



Here's mine in IBT max RAM just as a reference, it doesnt get much hotter then that as the test goes on and the chip is not de-lidded. You have a 360mm CLC? With some higher rpm fans on it, it would probably run a little cooler then mine all other things being equal, which they might not be tongue.gif. I have good airflow in my case and a 22.5c ambient currently.

Unless your temps are closer to mine running IBT or Prime 95, like the others have said, the voltage reported must be wrong. Even if it isnt, 1.336v under load isnt really that bad for Ivy Bridge with decent cooling, and your temps are fantastic.

Just a thought the temperature you gave at 53c, was that the hottest individual core on the CPU or some package temp or something?
post #10 of 16
Thread Starter 

HI first of I am sorry that I know not much about overclocking and am asking idiotic questions. guiltysmiley.gif
So I am running prime95 now (intelburnstestdoes not want to start...sry) and HWinfo and cpuz report 1.272vcore.
At around 65C. (heated room)
The 53C (cold room) was with aida64 stress test. Maybe I had something not on wich had to be enabled. sry

I am using the alphacool einbear 360 with the eiswind fans at about 80% speed.(i dont hear them with my headset on so they can run this fast) Atm my case is open.
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