Overclocking 2550k, is this voltage too high? What setting lowers it?

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ttg_Avenged

ttg_Avenged

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I am attempting to achieve a overclock that is stable, and I would LOVE to achieve 4.5-8 GHz. What settings should I mess around with in my BIOS?

When under load, my cpu reaches a max VID of 1.4011. The CPU is a 2550k at 4.5GHz.

Temps are somewhat scary... 100% load was max 84c, 83c, 82c, 75c. To be fair, this is 100% load using Intel Burn Test at 'Very High' stress.

I have a H100 (non i) cpu cooler and I could turn it up, if need be.

TL;DR: I would like to fine time the voltage and lower it until it is unstable. That voltage do I change, the VCore? That is my main question.




 
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ttg_Avenged


Hey Zerk, I'll lower the Vcore now. I didn't change any settings, only the multiplier and went immediately to 99c on one core. That was scary :)

Am I right in saying that lowering the voltage lowers the temp?

(99c, 96c, 97c 84c)
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ttg_Avenged

ttg_Avenged

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Hey Zerk, I'll lower the Vcore now. I didn't change any settings, only the multiplier and went immediately to 99c on one core. That was scary :)

Am I right in saying that lowering the voltage lowers the temp?

(99c, 96c, 97c 84c)
 
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ttg_Avenged

ttg_Avenged

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So I've been lowering the vcore with a negative offset (I hope that's right) and it BSOD'd even at -0.05. I set it back to auto.. the temps are soaring even on maximum cooling with the H100, and the vid is still 1.41ish at 100%.

What should I do, or am I doomed?

Edit: I am not using manual CPU voltage settings, I was using offset mode.
 
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ttg_Avenged

ttg_Avenged

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I REALLY hope I'm just doing something wrong.. I set the manual voltage to 1.39 and EVEN THEN it crashed at 4.8GHz.

I am only changing the VCore and nothing else. Seemed stable at 1.4V/4.8GHz.

When I even try to go to 1.29-1.35 my rig just BSODs "WHEA_Uncorrectable_error"
 
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Undying89

Undying89

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4.8ghz at 1.28v? Thats an epic chip or just isnt stable. Just becouse that you cant say 1.4v way to high. I'm at the same 4.8ghz at 1.39v for past 2 years and thats common for 2500k.

 
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ttg_Avenged

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I went from 4.8GHZ/1.39 unstable to 4.7GHZ/1.38 stable.

I don't even know.. does that mean my chip just says NO to 4.8GHz or was it the power?

Thanks for the help guys! 4.7GHZ is AWESOME!
 
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Undying89

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At 4.7ghz 2500k is faster than 4690 stock. Like i said, those voltages are common for sandy and those clocks.
 
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Zerk2012

Zerk2012

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Not sure if this is clear enough to see I could try it a different way.
http://s1274.photobucket.com/user/Zerk2012/media/020_zpsov4lhjkf.jpg.html?sort=3&o=2
http://s1274.photobucket.com/user/Zerk2012/media/021_zpsfta3ggvg.jpg.html?sort=3&o=1
http://s1274.photobucket.com/user/Zerk2012/media/022_zpsoaysgr3x.jpg.html?sort=3&o=0
4800.11
1.28 volts
Running Prime95
I ran this processor @5.2 for a while.

Some chips are better than others it's just the luck of the draw.

 
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Zerk2012

Zerk2012

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My GB board started having issues about a month ago had to lower my clock speed I replaced it last week with a asrock Extream 4 Z77 about the only decent 1155 board that was left to buy.
 
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