overclocked my i5 4670k but not sure about my voltages, getting 1.246 and its set on auto?

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ithshaam

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Apr 2, 2013
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recently overclocked my i5 4670k on msi g45. didnt change much settings in the bios. changed the CPU ratio to 42, XMP profile as enabled and CPU voltage as adaptive mode. the voltages i gt were 1.246 on load and temps are around the 60 mark (highest 63) under prime 95. are these okay and would i be able to go higher, if so what else would i need to change.

This is my first overclock btw.

Thanks in advance
 
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Y

Y0GI

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Jul 22, 2013
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Those settings look OK. Here is a thread on OC'ing Haswells that helped me a lot: http://www.tomshardware.com/forum/id-1722630/intel-god-quick-dirty-guide-4ghz-haswell.html

Follow those recommendations and you should get a safe, stable OC on your system.

Good luck!

Yogi

 
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ithshaam

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thanks for your reply. so should i leave it the way it is, would that be okay ? or shall i adjust the voltage ? or is that okay aswell?

thanks
 
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Y0GI

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You'll be fine if you leave it as-is, but your system has more OC potential.

Yogi

 
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ithshaam

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in cpu ratio there are two options (dynamic mode and fixed mode) which one is best for me ?
in cpu core voltage mode is set on adaptive mode (there other two options there are override mode and auto) what should i set that to. and what voltage would be safe for me to go down to fom 1.246 if i was to enter it manually.
 
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Y0GI

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I'm not familiar with "Dynamic Mode" so I cannot advise you there. My MB doesn't have that option.

As far as CPU Vcore, use Override for stress testing and Adaptive for all else. Also check your Power Options under Windows and use "Balanced" as this will allow your CPU to lower clock and voltage at times of reduced demand.

You could reduce your voltage from 1.246 to 1.236 and then check for stability. If stable, reduce again another 0.010 v. and test stability again. Keep reducing in 0.010 v. steps until the system becomes unstable and then add back 0.010 v.

Yogi

 
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ithshaam

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hi, i dont what you said. left everything the way it is and changed the voltage mode to override for stress testing. i changed the voltage down to 1.236 and a blue screen came up while i was using prime 95. so then i took it back up to 1.246 and im stress testing right now. Any tips?

thanks
 
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Y0GI

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Jul 22, 2013
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Just to keep your Vcore to at least 1.246, but you prolly already knew that.

Yogi

 
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ithshaam

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ive put it back to wat it was. the Vcore was set to auto. did that n ran prime95 for bout n hour n it crashed. whar does that mean, it didnt do it before?
 
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Y0GI

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It means that your OC is not fully stable and that more Vcore is needed. Try 1.256 v. and watch your core temps.

Yogi

 
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ithshaam

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It didn't do this before, I put everything back to normal, and ran prime 95 for bout n hour n it crashed. Before I ran it for about 2 hours n it was okay. If I increase the voltage to 1.256v, would that be okay ?

I've also just changed the voltage mode to adaptive to as it was set on auto before and am running prime 95 right now
 
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Y0GI

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Jul 22, 2013
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Yes, 1.256 will be OK.

You should be in "Override" mode for stress testing, not "Adaptive" as Adaptive may give some high voltage excursions and higher temps.

Yogi

 
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ithshaam

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okay ive set the voltage on auto (1.246 as it shows in CPUz) and voltage mode is set on overide mode as you said. lets see how it runs this time ?

thats why it probaly kept on crashing as it was set to adaptive mode while i was stress testing, dont you think ?

thanks for all this help btw
 
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Y0GI

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Jul 22, 2013
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You're quite welcome!

I doubt that adaptive mode would have caused the crash. Prolly the opposite, that it would normally PREVENT a crash but would cause HIGH TEMPS to go with it.



 
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Y0GI

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Jul 22, 2013
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Yes, good signs, but if it has already crashed once at 1.246 v., why try again without increasing voltage?

Yogi

 
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Y0GI

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Yes, it should be fine, but I would change it to Adaptive for day to day usage. Also, be sure that you have selected "Balanced" in Windows power options.

You're welcome.

Yogi

 
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ithshaam

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okay ive just chacked and windows was set to balanced already, but ive taken off the stand by mode in the power options as i dont like it turning off lol. and yeah im going stress it for another hour and see how it goes. really appreciate your help mate
 
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Y0GI

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Jul 22, 2013
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Not a problem!

Yogi

 
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