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Haswell overclocking help

post #1 of 6
Thread Starter 
I have my 4670k at 4.7 ghz with a 4.4 ghz cache. I feel my vcore is like a lot high though. My cache voltage (ring voltage?) is at 1.3v. My vcore is at 1.375v. That is the minimum i can go to keep it stable. I would like to know what im doing wrong and what tricks are to lower the vcore and have it stable. I have c states off and the other power savers off. I am using a maximus vi formula and i have a custom loop with a 480 and a 360 with a raystorm block. Thanks
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post #2 of 6
I'm running a lower setting....4.5GHz at 1.264V Manual...

On the cache voltage and frequency, did you actually benched the difference between 3.9GHz and 4.4GHz for example? Because CORE IS KING, cache frequency is not a big big deal, but can affect the overall stability....I kept my cache freq at 3.9Ghz (1.19V) here...just to keep that issue out of the way...

Have you tried to increase the INITIAL CPU voltage and the EVENTUAL CPU voltage to 0.45v above the vCORE or you left it on AUTO? I did it myself, because I had the odd BSOD at power down and stuff...I seem to be stable a lower vCORE with this done.... (I set INITIAL AND EVENTUAL AT 1.75V)...

REF: http://rog.asus.com/242142013/labels/rog-exclusive/maximus-vi-series-uefi-guide-for-overclocking/5/

Quote:
VCCIN Shadow: Is the very first input voltage level applied. The next input voltage level applied is Initial input voltage. The final input voltage level applied is Eventual input voltage. So it goes like this, Input voltage during post = – VCCIN Shadow, then Initial input voltage till BIOS setup, and right before OS loads, Eventual input voltage is the final voltage applied. You can leave Shadow at Auto unless you want to get input voltage very high or very low throughout the boot process.

Edited by delavan - 9/21/13 at 1:26pm
post #3 of 6
Thread Starter 
I had 4.5ghz at 1.25v. I've heard that keeping the cache within .3ghz of the cores can keep things stable as well, that's why I have it up. I will try the initial and eventual. Thanks, +rep
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post #4 of 6
That's gotta be about overheating under load,unless you have some miracle chip..
 
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Thuban Powah!
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post #5 of 6
Thread Starter 
its at 90 degrees. I have the initial voltage at 1.7 and eventual at 1.9. I saw this in a guide somewhere. I will change it and try that.
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Amd FX-8120 Asus M5A99FX Pro Sapphire Radeon 7950 Corsair Vengeance 1600 
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OCZ Vertex Custom Watercooling Nzxt Phantom 
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i7 4770k Asus Maximus VI Formula Sapphire Raedeon 7950 16GB Corsair Vengeance @1600Mhz 
Hard DriveHard DriveCoolingOS
OCZ Vertex II 120GB Seagate Barracuda 3TB Custom water cooling Windows 8.1 
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post #6 of 6
Thread Starter 
Also, this is off topic, but is there anything you can use besides a vice to clamp the cpu to something to delid it? im really consitering it at this point...
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First Rig
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Current Rig
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CPUMotherboardGraphicsRAM
Amd FX-8120 Asus M5A99FX Pro Sapphire Radeon 7950 Corsair Vengeance 1600 
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OCZ Vertex Custom Watercooling Nzxt Phantom 
CPUMotherboardGraphicsRAM
i7 4770k Asus Maximus VI Formula Sapphire Raedeon 7950 16GB Corsair Vengeance @1600Mhz 
Hard DriveHard DriveCoolingOS
OCZ Vertex II 120GB Seagate Barracuda 3TB Custom water cooling Windows 8.1 
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AOC 29" 21:9 EVGA NEX750G NXZT Phantom (modded) 
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