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ASRock Z68 Extreme3 Gen3 OC and findings

post #1 of 7
Thread Starter 
I want to speak about the same thing that I mentioned in tweaktown. So instead of re-hashing what I already typed and to eliminate any confusion, I will just post a link to the original topic and discussion. Any info and advice of any kind is welcomed. Just go to the last page 2 of the thread. Thanks!

http://forums.tweaktown.com/asrock/48117-no-llc-level-works-besides-level-1-my-z68-asrock-extreme3-gen3-2.html

http://s1226.photobucket.com/albums/ee413/JKDMind/OCing%20and%20BIOS/

Oh well, I guess I will post the main thing. If you want to know more about other issues go to the link above.

Hey guys,

I guess I kinda have the same problem. The different LLC levels will let the voltage drop slightly less, or slightly more than other levels and that they prevent spikes to a certain degree, but the spikes are pretty much the same on all of the LLC levels with only minor differences. One problem though is that if I have my voltage set at 1.30-1.32v in the bios and then run Prime95 in windows, I can see the voltage spike as high as 1.37 regardless of LLC setting. Is this normal? However, it won't go that high of a voltage often, just here and there. Especially when windows is loading and my apps are loading etc, because soon as windows boots up I immediately open CPU-Z, HWMonitor, and RealTemp. But after everything is done loading it will drop. But just to clarify, it happens in Prime95, but rarely. Amazing that a windows boot will cause the CPU to jump to 1.37 briefly, but Prime95 usually goes to 1.36 and mainly through out the whole test it's anywhere from 1.32-1.35v.

Another odd thing that I noticed, is that I have two stable OCing profiles set in the bios of my ASRock Extreme3 Gen3. One is fixed voltage and the other is offset voltage. I got my offset profile 12 hours Prime95 blend stable, and my fixed voltage is only 8 hours, so I kinda need to work on that. Reason why it's only 8 is because one of the workers failed, so I uped the voltage a little and need to retry at another time. Anyways, I digress.

What I really wanted to speak about is when I was messing with offset and LLC, is that the LLC levels 2-5 all have the same offset values, regardless of "-", or "+", they all have the same voltage value. An example would be that +0.060 would read as 1.320-1.344v as it fluctuates, and this value is the same with all LLC settings 2-5. However, if I load LLC level 1 and save and exit and come back to the bios, the voltage values for every offset value increase dramatically. Such as +0.060 is now reading 1.41.-1.42v in the bios instead of 1.320-1.344v, which was the reading voltage for all LLC levels, except for level 1, which I found odd.

Just wanted to post my findings. If there is anything else I forgot to mention, or if I find anything later on that is worth mentioning, I will come back. Eventually I need to work on seeing if I can get stable on my profiles with less voltage, or not. Want my chip to last as long as possible with good speeds as possible. smile.gif

Take care!

PS - Reason why this image says that the max voltage was 1.35, is because I closed HWMonitor and re-opened it to see what the voltages were like in Prime95. Also, seems like after I stop/start Prime95 the voltages went up to 1.37 as indicated by the pic directly below.
Edited by SunTzu83 - 4/27/12 at 6:00am
post #2 of 7
I have had the same problems as you with the offset voltage and LLC. I ended up just using the fixed voltage and choosing the 4.8 overclocking bios setting to get stable.
Edited by Alkaline41 - 4/23/12 at 3:11pm
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post #3 of 7
Thread Starter 
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post #4 of 7
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Even though the voltage spikes only last for seconds, should I be worried about damage? Is there a difference in voltages going from idle to load as suppose to load voltages going from 1.32 jumping to 1.39? Should I be worried?
post #5 of 7
Thread Starter 
Idle - 1.040v on average with 1.368v spikes, depending on what I am doing. Highest I've seen it is 1.378v.
Prime95 - 1.312v - 1.328v
Minecraft - 1.128v - 1.370v
GIMP - 1.040v - 1.368v

375


I'm beginning to dislike you ASRock.
Edited by SunTzu83 - 4/30/12 at 5:46am
post #6 of 7
the cpu voltage is fine to 1.4 -1.45 tbh.. i have the same thing happening on my fatality board but i cant see it being any diffrent on any other mobo tbh when using offset. im running mine at 4.7 atm using offset for the first time. mine holds stable under load at 1.368 and spikes now and again to 1.387 or something like that.

as long as your temps are good i dont think you have anything to worry about smile.gif
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post #7 of 7
Thread Starter 
Well here is my two cents on the matter.

1.) Everyday applications such as GIMP and a simple game like Minecraft using more voltage than Prime95 is just down right ridiculous. Even Mozilla will have it spike to those readings at times.

2.) Having a consistent voltage during load and idle is what's expected. Course there will be variances, but Prime95 being on a average 1.33v and everyday simple applications go up to 1.378v is just down right unacceptable. Especially when Prime95 requires way more power and stresses the CPU more than a web browser. I am certain of that.

3.) Voltage spikes like these, that are not load voltages and have a consistency to the voltages I have set to the BIOS/UEFI, is down right destructive and extremely harmful to my chip. SB can handle high voltages yes, but voltage *spikes*, spikes being the key word here. Is a completely different matter and doesn't follow consistency. This kind of voltage behavior can kill a chip and rather quickly at that.

Also, LLC has no effect what so ever on these spikes and voltage readings, which it should, because that is what LLC is for. But for whatever reason, LLC does not work. Another danger I am dealing with.

If anything I said is wrong. Please correct me.
Edited by SunTzu83 - 4/30/12 at 8:03am
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