i5 2500K OC to 5.0GHZ!!!!!!

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Marjana Ricky

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Sep 12, 2014
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Ok firstly here are my specs:
i5 2500K
P8 Z77 VPRO
8GB Gskill RAM
620W Seasonic II Bronze

Now i have been able to overclock my old i5 2500K without interfering with voltages to 4.6ghz easily. After then 4.7 and 4.8 ghz max. Now I tried overclocking to 5.0GHZ with air cooling only, but to make it stable i increased the voltage to 1.3V from ASUS inbuilt desktop utility TurboV Evo. Played Assassin's Creed Unity for 2 hours and no crashes or anything. Max temps recorded were 66 degree C but when while on full load when i checked the voltage it was showing 1.4+. Now my concern is firstly when i selected to 1.3 howcome its going above 1.3?? And if its doing automatically is it safe? Or it would blow my CPU?? :( HELP please i have no idea about playing with voltages so any suggestion would really help please.
 
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13thmonkey

13thmonkey

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Jan 10, 2006
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Overclocking can kill your CPU especially if you are increasing the voltages, even automatically. You look at those people that hit 5.0 on air, and ask them how long they used their system for I'd surprised if anyone said more than 6 months.

You had a perfectly fine 4.6 that was a long term OC. be happy with that, or feel free to experiment knowing that you could loose it very easily and have to replace mobo and CPU.
 
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13thmonkey

13thmonkey

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Jan 10, 2006
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no, if temps are low then you are safe IF the voltage is below a certain level, no really knows what that level is but 1.3 is on the edge.

I've read in some threads that some people experienced instability after 3-6 months at a certain overclock, and that this could only be solved by increasing the voltage, this then became unstable after a little while causing another voltage increase, the chip was degrading, all at safe temps.
 
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Marjana Ricky

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Sep 12, 2014
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But how can i stop it going that far? Like its floating from 1.2 to 1.35 .. Do i have to set in bios? like from offet mode to manual? And set 1.3V there?
 
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DubbleClick

DubbleClick

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Jun 16, 2014
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I'd set the voltage manual, to the smallest value that still remains stable. For example, start at 1.3v. If it's not stable, downclock to 4.9ghz. Once it's stable at 1.3v, start decreasing voltage in 0.005 steps. If it becomes unstable (do a 5 minute IBT test) increase voltage by 0.01 and you're good.
 
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Marjana Ricky

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Sep 12, 2014
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Tried playing with voltages but its not stable at any point. But if i leave it to offset mode and then try overclocking its stable till 4.8 ghz with vcore dancing from .9v to 1.376V depending on the load.
 
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Marjana Ricky

Honorable
Sep 12, 2014
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I have no idea, how to set that, as no matter how much low i set from Asus windows software, it still goes above that and upto 1.376V. And if i set manual from offset in BIOS then it can't even get stable 4.4Ghz even at 1.3V I am confused what to do :/
 
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DubbleClick

DubbleClick

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Jun 16, 2014
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You can't even get 4.4ghz stable at 1.3v? What the hell. Well, I can't really recommend you anything then, but if you're not planning to use the cpu for more than another 2 years you're probably okay at 1.37v. Otherwise you'll have to run it at like 4ghz if that gets stable. Although it's very strange that your cpu can do 5.0ghz at 1.37v but not 4.4ghz at 1.3v.
 
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