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Need serious help with i5 2500k OCing

post #1 of 13
Thread Starter 

So, I followed the ultimate guide to OCing but still no luck...

http://www.overclock.net/intel-gener...e-p67a-58.html


I have literally tried everything but I can't seem to get my computer to stabilize at 4.5ghz unless I set it to 1.360volts and have LLC at level 7.

If I have those settings on, my vcore jumps up to as high as 1.428volts which is isane. I see poeple being able to get to 4.5ghz at 1.350 volts which I really don't understand...

Is it possible that my RAM is effecting my OCing or something?



I really just want to stabalize at 4.5ghz, I'm not planning on going past that.

The best I have been able to do so far was 4.1 ghz set at AUTO voltage which capped at 1.25volts (if I recall correctly.)
Edited by Lirik - 8/16/11 at 9:17am
    
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post #2 of 13
Some chips require a higher voltage, does your board have any stronger LLC? That seems quite a bit of voltage jump under load for LLC enabled - with SB as its strictly (for the most part) multiplier overclocking, your memory overclock / speeds have very little/nothing to do with your CPU overclock.

Even with jumps to 1.428, there's nothing wrong with that voltage (though obviously again, you don't want that high of a jump) just make sure that your temps are fine.
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post #3 of 13
Thread Starter 
Quote:
Originally Posted by appleg33k85 View Post
Some chips require a higher voltage, does your board have any stronger LLC? That seems quite a bit of voltage jump under load for LLC enabled - with SB as its strictly (for the most part) multiplier overclocking, your memory overclock / speeds have very little/nothing to do with your CPU overclock.

Even with jumps to 1.428, there's nothing wrong with that voltage (though obviously again, you don't want that high of a jump) just make sure that your temps are fine.
My LLC goes from levels 1-10

My temps max out at 62 degrees Celsius MAX. When at 1.360v at LLC level 7
    
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post #4 of 13
Keep in mind that not all chips and mobo's will do 4.5 ...
post #5 of 13
Thread Starter 
What is the highest LLC level and voltage I should go to for 4.5?

I want to start there and test.
    
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post #6 of 13
Quote:
Originally Posted by Lirik View Post
What is the highest LLC level and voltage I should go to for 4.5?

I want to start there and test.
My friend's system takes 1.39v to be stable at 4.5ghz with extreme setting on the asus p8p67 pro. Some chips really do need that extra voltage unfortunately.

ive seen 1.4v+ with extreme llc for stable 4.5ghz so if your chip needs this and is stable with it then your fine aslong as temps are ok
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post #7 of 13
Thread Starter 
Quote:
Originally Posted by Chewy View Post
My friend's system takes 1.39v to be stable at 4.5ghz with extreme setting on the asus p8p67 pro. Some chips really do need that extra voltage unfortunately.

ive seen 1.4v+ with extreme llc for stable 4.5ghz so if your chip needs this and is stable with it then your fine aslong as temps are ok
Won't that kill the CPU extremely fast?
    
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post #8 of 13
Extreme LLC or the highest possible setting is not always a good thing as the majority of the time it spikes the voltage under LOAD above what is set in the bios which in turn can be dangerous, therefore I dont recommend using Extreme LLC or the highest possible setting, these risks are more associated with higher voltages like 1.45+ but needless to say, objective is to use the best LLC setting that is closest to what you set in the bios and not above and to do that you need to test each of them out. For Asus mobo's the ultra high LLC seems to work the best.
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post #9 of 13
Thread Starter 
I have a z68 whic has LLC level's ranging from 1-10.

Also, would setting it to 1.390v with LLC disabled be "safe?"
    
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post #10 of 13
Quote:
Originally Posted by Lirik View Post
I have a z68 whic has LLC level's ranging from 1-10.

Also, would setting it to 1.390v with LLC disabled be "safe?"
1.390v is fine but without any llc it would drop to around 1.35-6v under load and would probably be unstable.

You need to apply llc so that under load your cpu holds its voltage
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