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Can't hit 4.8ghz on i7 3770k

post #1 of 12
Thread Starter 
The more vcore I use, the less stable it seems to be. I am using extreme LLC and a vcore of 1.3. I have tried a vcore up to 1.37 and it seemed far more unstable. My temps are at 63c so that is fine.
Thanks for the help.
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post #2 of 12
Take the LLC down a notch, It seems a bit high for that voltage. Go to your minimum vCore at that speed and go up from there
     
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post #3 of 12
Thread Starter 
Quote:
Originally Posted by Pedroc1999 View Post

Take the LLC down a notch, It seems a bit high for that voltage. Go to your minimum vCore at that speed and go up from there
So, I should drop the LLC down to Turbo?
I'm not sure of the min vcore needed for 4.8Ghz, I guess this is what I am trying to find.
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post #4 of 12
What options do you get? Normally drop from extreme to high. Find your lowest bootable vCore and stress test for 10mins, if its all Ok then go from there. You might be pumping to much volt onto the chip as you get more unstable. That looks to be like a pretty good batch for ocing
     
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post #5 of 12
Thread Starter 
Quote:
Originally Posted by Pedroc1999 View Post

What options do you get? Normally drop from extreme to high. Find your lowest bootable vCore and stress test for 10mins, if its all Ok then go from there. You might be pumping to much volt onto the chip as you get more unstable. That looks to be like a pretty good batch for ocing

Alright, thanks for this.I will keep you informed. What program is best for spotting issues quickly without using over-needed force as seen with the Intel Burn Test? wink.gif
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X79-GCN
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post #6 of 12
Prime 95, IBT is just extremely excessive. The only way your PC would heat up that much was if you put it in a microwave. Stick with P95 and do 10mins in between OC's,a nd a final 8hour+ in the end

Prime95 Link
     
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post #7 of 12
Thread Starter 
Quote:
Originally Posted by Pedroc1999 View Post

Prime 95, IBT is just extremely excessive. The only way your PC would heat up that much was if you put it in a microwave. Stick with P95 and do 10mins in between OC's,a nd a final 8hour+ in the end

Prime95 Link

That's good, this is what I'm using as we speak.
Here are my results atm. This is very strange!
4.8Ghz, LLC Extreme, PPL Overvolt Enabled, 62c max temp.

vcore 1.28 = 2 hours stable
vcore 1.35 = 5 seconds stable
vcore 1.37 = 2 seconds stable
vcore 1.4 or higher = 1 second stable.
The chip does not like voltage. This is why I only need 1.19v for 4.5Ghz!
Any other suggestions to help get to 4.8Ghz?
Thank you everyone
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post #8 of 12
I hope someone can shed some light on this. I experienced the same phenomenon when i went for 4.8 on my 3770k and i kept pushing the volts up to 1.45v with no avail to make sure it wasn't just low voltage, it'd just instantly crash/bsod under prime small ftts/blend. I doubt it was the temps either because i'm getting mid 70c's with blend in prime with 1.3v 4.6ghz and that where i have settled thus far.

Btw, LLC level doesn't play an important role here.
post #9 of 12
Thread Starter 
Quote:
Originally Posted by Fulvin View Post

I hope someone can shed some light on this. I experienced the same phenomenon when i went for 4.8 on my 3770k and i kept pushing the volts up to 1.45v with no avail to make sure it wasn't just low voltage, it'd just instantly crash/bsod under prime small ftts/blend. I doubt it was the temps either because i'm getting mid 70c's with blend in prime with 1.3v 4.6ghz and that where i have settled thus far.

Btw, LLC level doesn't play an important role here.
I will keep testing to see if I find the right voltage/settings.
Tell me everything you've tried please.
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X79-GCN
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post #10 of 12
I didn't book all my results up anywhere other than that 4.7 1.4v passed prime95 without WHEA's for a short 5 min blend run. It might just be the low voltage / temps for me, now that i looked back at my findings. Maybe it just needs ~1.5v to brake that 4.8ghz barrier for me.

The jump from 4.5 to 4.8 might very well be much bigger than you might think. I needed 0.1v more to get from 4.6 1.3v to 4.7 1.4v+.
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