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[i5 3570k] Was My Overclock Too Easy? - Page 2

post #11 of 18
Nice to see it is so easy to get up to 4.5 giggle hertz tongue.gif I just bought my first Intel combo, a 3570k and P8Z77-VLK and I am stoked to see what kind of results I can achieve biggrin.gif
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post #12 of 18
Thread Starter 
Again, appreciate all the replies. So, basically to find my offset I will do (vcore - vid)? So (1.25vcore - 1.2460v = 0.004.) I noticed CPU-Z shows my core voltage at 1.224/1.248v however. I use slightly less vcore at 4.5ghz than idle for some reason. I assume that has something to do with vdroop that I would just change in LLC since its currently on auto?

I do first plan to try to get a lower voltage than 1.25v, but want to make sure I got my offset thing correct. Hard to tell if I need + or - offset as well.

Btw I am using AIDA for benchmarking now if that matters, and it says my cpu core voltage is 1.056 all the time.

Thanks
Edited by flyingspatula - 9/13/13 at 7:55pm
post #13 of 18
Try using medium-high-very high LLC, these also affect your vdroop voltage
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post #14 of 18
Quote:
Originally Posted by flyingspatula View Post

Again, appreciate all the replies. So, basically to find my offset I will do (vcore - vid)? So (1.25vcore - 1.2460v = 0.004.) I noticed CPU-Z shows my core voltage at 1.224/1.248v however. I use slightly less vcore at 4.5ghz than idle for some reason. I assume that has something to do with vdroop that I would just change in LLC since its currently on auto?

I do first plan to try to get a lower voltage than 1.25v, but want to make sure I got my offset thing correct. Hard to tell if I need + or - offset as well.

Btw I am using AIDA for benchmarking now if that matters, and it says my cpu core voltage is 1.056 all the time.

Thanks
You have the right idea.

VID vs. VCore with offset

CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 95

Vdroop and offset
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post #15 of 18
I must say, you have a pretty decent 3570k there. Mine needs 1.45V with extreme LLC just to be stable at 4.8ghz. I don't feel all that comfortable running it with such high voltage, so I'm gonna switch over to Haswell and pass on my chip and mobo to a second rig.

Quote:
Originally Posted by inedenimadam View Post

You have the right idea.

VID vs. VCore with offset

CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 95

Vdroop and offset

Awesome graph! Finally I understand how Voffset works! Rep for you!thumb.gif
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post #16 of 18
Thread Starter 
@4.5GHz
Vcore 1.25v ~Fixed
LLC High

Max Temp: 74*C

Prime95 (5 hrs)
Full Load: Vcore 1.212v / VID 1.236v
Idle: Vcore 1.248v / VID 1.030v - 1.210v

This means it would be a Offset: -0.024v?

Thanks for those graphs, I think I might hopefully understand this a little better now seeing it visually! I did a few more hours of Prime95 at a fixed 1.25v with high LLC. For whatever reason, my Vcore runs higher while idling than while under full load. My VID is much lower while idling however, but also fluctuates with the bouncing speeds. I am not sure what to make of this. Is this normal or do I need to play with the LLC more, or will this fix itself once I set it from fixed to offset voltage?

If all is fine, I should continue with setting to offset and using -0.024v and see how stable that runs, correct?

Edit- Ok I am very confused. Every time I attempt to use Offset, the auto voltage part called *Normal* undervolts my cpu like crazy and just crashes immediately. Am I doing somethign wrong here? I pretty much can't use the offset feature unless I am doing it wrong. Even with no voltage modifier it undervolts.

Thanks
Edited by flyingspatula - 9/14/13 at 5:48pm
post #17 of 18
I don't know what motherboard you have, so it may be called something different. When using offset mode, you should have 2 voltage settings to mess with, offset voltage and turbo, as long as those two settings are available you can do this. You know you are stable at 1.212 under a full load, because you have already proven that with the P95 testing. So here are the steps you should take to get that working.


0.Disregard VID for these steps, it is no longer useful information
1 start with +.005 offset voltage and +.004 turbo voltage
2. boot up and put full load and check VCore
3a.If full load VCore is > 1.212, subtract the difference to offset voltage
3b.If full load VCore is < 1.212, add the difference to turbo voltage.
4.boot up and stress test again, check for voltage=1.212
5.WIN

Full load always droops below idle voltage unless you are on extreme LLC, that is called Vdroop. Your droop is roughly .03. Again, I don't know what motherboard you have, so I cant tell you what setting/level is going to defeat Vdroop, on some motherboards they have words to describe the different levels of compensation, on ASRock they give it a number system that is completely unintuitive. For a moderate overclock with voltages like yours, I don't see a reason to go to either extreme, middle of the road is fine. Vdroop was actually engineered into the chips to prevent overvoltage from stabilizing voltage waves and voltage spikes, so using an extreme setting and completely defeating it is il-advisable. Also, the other end (low compensation) of LLC will cause you to have a higher VCore when using max frequency but not under 100% load. middle of the road for moderate overclocks. It is really only worth going extreme when you are pushing the limits of the voltage to your chip.

Fill out rigbuilder in the top-right header of the website and show it in your profile signature so we can better see what hardware you have, and we can tailor our help to your specific hardware.
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post #18 of 18
Quote:
Originally Posted by TLM-610 View Post

Neoroy, there are some chips I have seen here doing 4.8Ghz on offset and all power saving, gating features enabled with quite low vcore, so it is merely chip dependent when it comes to what works/safe for the chip. That you can only know if you practically put the chip to the test.
Yup I guess every chip is different smile.gif thanks for the info ^^.
Quote:
Originally Posted by flyingspatula View Post

Again, appreciate all the replies. So, basically to find my offset I will do (vcore - vid)? So (1.25vcore - 1.2460v = 0.004.) I noticed CPU-Z shows my core voltage at 1.224/1.248v however. I use slightly less vcore at 4.5ghz than idle for some reason. I assume that has something to do with vdroop that I would just change in LLC since its currently on auto?

I do first plan to try to get a lower voltage than 1.25v, but want to make sure I got my offset thing correct. Hard to tell if I need + or - offset as well.

Btw I am using AIDA for benchmarking now if that matters, and it says my cpu core voltage is 1.056 all the time.

Thanks
Yes Vdroop and LLC will affect your Vcore smile.gif such as : set High Vdroop will cause less delta Vcore than medium Vdroop.
Just like inedenimadam said : depends on your board's setting. I use MSI Ivy board and don't have Offset only Vdroop level.

Quote:
Originally Posted by inedenimadam View Post

You have the right idea.

VID vs. VCore with offset

CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 95

Vdroop and offset
Thx inedenimadam thumb.gif Nice SS info.
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