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***Official Ivybridge Overclock Thread***

Anonymous_0172 said:
On auto it seems to fluctuate between 1.192 and 1.240v under load according to CPU-Z. I'll run Prime tomorrow and post the results...
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After 25 minutes, I got a 'Prime95 has stopped working' message, and a load of WHEA errors. Whilst running prime, auto kept the vCore at a constant 1.200v, whereas under SuperPi it reached up to 1.218v.
Would a lower multiplier and higher BCLK be a better option to reach 4.3, or should I just increase the voltage a bit more with my current settings?

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Lowering voltage of IGPU definitely reduces temps I've found. I've taken the igpu clocks and volts to their minimum that the bios will allow and temps drop by about 5c.

dRjfK.png


Btubi.jpg


quick reset of igpu to stock settings and brief resume of folding temps go 5-10c above my average.

MWtgq.jpg


reduced it again and gone to first pic temps.

Only problem I've found reducing igpu is that sometimes if hardware acceleration is not enabled youtube videos may cause a bsod.
 
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HankScorpio said:
Lowering voltage of IGPU definitely reduces temps I've found. I've taken the igpu clocks and volts to their minimum that the bios will allow and temps drop by about 5c.

dRjfK.png


Btubi.jpg


quick reset of igpu to stock settings and brief resume of folding temps go 5-10c above my average.

MWtgq.jpg


reduced it again and gone to first pic temps.

Only problem I've found reducing igpu is that sometimes if hardware acceleration is not enabled youtube videos may cause a bsod.
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Nice volts! My 3770K needs about 1.27 for that speed.
 
Jokester said:
I turned off my iGPU in the BIOS, do you have the option?
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Nope :(

Edit, was thinking about this so dug about in my bios and looked in the 'periphrials' section and 'intergrated graphics' was there, ticked disable and temps have dropped a further 1-4c, they don't even breach 70c now
yippee !
 
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I'm currently running prime95 blend (been running an hour so far) on my 3570k at 4.6ghz with 1.225v

Pretty chuffed with that :)

Have been as far 4.9ghz at 1.36v which handled prime for 10 mins and IBT on standard settings for 10 runs. Temps were peaking into the 80's so running at 4.6ghz with this lower vcore is the better option i think.

Jim :)
 
I have had AIDA64 running for 11 hours with no errors at 4.6GHz with 1.320v. However there have been a 5 WHEA errors :( really dont want to push the volts any higher tbh.
 
Rossdh said:
I have had AIDA64 running for 11 hours with no errors at 4.6GHz with 1.320v. However there have been a 5 WHEA errors :( really dont want to push the volts any higher tbh.
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not stable then :( you're actually slowing the cpu down as its having to recalculate each time a WHEA error occurs

either drop the clock or raise the volts
 
Finally got mine stable for 24 hours Prime95 Blend with no WHEA errors, but it requires 1.224v (according to CPU-Z) and reached max temps of 75, 79, 74 and 72*C @ 4.3GHz :eek:
At least they don't get anywhere near that when gaming ~ 50*C

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Will having all 4 DIMM slots filled affect the amount of volts required? I have 4x4Gb sticks installed and I seem to have to use much higher volts than most people here and even then it doesn't want to be stable.
 
I have seen one person post that an increased memory voltage / speed required them to use an increased vcore to achieve the same stability.
When I have all four memory slots full I did not notice any increase in vcore being required to maintain the same overclock. Now that I only have two filled the vcore has needed to remain the same.
For my 3570k that means 1.212v @ 4.4Ghz.

Easy way to find out what applies for you and your setup - just remove two of them and then check.
 
Rossdh said:
Will having all 4 DIMM slots filled affect the amount of volts required? I have 4x4Gb sticks installed and I seem to have to use much higher volts than most people here and even then it doesn't want to be stable.
Click to expand...

On the MVE I doubt it but remember each chip is different and every memory controller unique. Have you actually tried Tweaking PLL and teh other voltages etc instead of just adding Vcore everytime. Vcore is not always the answer.
 
8 Pack said:
On the MVE I doubt it but remember each chip is different and every memory controller unique. Have you actually tried Tweaking PLL and teh other voltages etc instead of just adding Vcore everytime. Vcore is not always the answer.
Click to expand...

Well that was my next thought. I was going to up the QPI/VTT volts but can't seem to find them...
 
Right, so im back from a weekend away (went to see the mens 105kg weightlifting finals xD) - and ive just bumped my RAM upto 1866mhz at 1.536v (thats bios, not sure what it really is) and after crashing as soon as i ran prime blend a couple of times at lower volts, its now been stable for about 10 mins.

Do these numbers seem ok? Just ive not done much research on RAM overclocking, but it seems like 1866 shouldnt be a problem at all for 1600 rated ram. Just thought id check. CPU is at 4.3ghz with 1.208v (load) if that matters.
 
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