Overclocking an i5-4690K on an ASUS B85M-G Mobo safe?

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supermanu15

supermanu15

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I am planning to replace my i5-4460 that I borrowed with an i5-4690K and overclock it at most 4.2ghz only, so I want to ask the community if it is safe? Because there is an article stating that the B85 series can now support overclocking after the BIOS update.

Also asking this because someone in the community here might have the same setup. :)
 
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K
It will not overclock a haswell refresh cpu. Early haswell chips on an older bios version maybe, but the only haswell allowed to OC with any recent BIOS is the G3258 dual core.

You need a little history on the non-z overclocking of 4th gen. It was released with the early 4th gen chips, 4670K and 4770K on the H and B motherboards. Intel did not like that, so they made the vendors stop. Then the Haswell refresh came along, and the Pentium Anniversary edition. I do not beleive the haswell 4690K or 4790K chips ever overclocked in any board other than a Z. The haswell overclocking was brought back for just the G3258. And even then windows got a critical update that hosed overclocking, the 2nd core would drop out or the clocks would...
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photonboy

photonboy

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The last BIOS update was almost two years ago, yet you have this thread a few months ago and now ask about a BIOS update which I think you are suggesting was really recent?
http://www.tomshardware.com/answers/id-3398765/4690k-overclocking-asus-b85m.html

so? what's going on?

I see a few potential issues:
1) low quality motherboard for overclocking, but yes should handle a light overclock since I assume the board can handle a stock i7-4790K which would use a lot more power than a stock i5-4690K
2) stock CPU cooler may work, but if does will be loud
3) DOES it support overclocking?
4) *Intel has microcode updates that can kill overclocks even if they work in the BIOS. I'm not sure what motherboards and CPU's are affected. (which means once you boot into Windows your CPU may default to stock settings)

Other:
I'm not sure if you can modify the TURBO values like I did with my i7-3770K. If you can (and can't OC) then right away try raising them all to maximum and see if it's stable.

In other words, a multiplier of "39" for every Turbo level such that under heavy load it should run at a solid 3.9GHz.

If you manage a "4.2GHz" OC depending on how you did it that may still throttle down. I'm honestly not that familiar.

I guess all you can do is try. I can't find any information on this, so I'm somewhat skeptical it will work (overclocking that is).
 
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supermanu15

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i sort of segwayed from that post and that post ended up in answering if my board can support the i5-4690K, instead of the post's intention of if it is safe to do so, i forgot the meaning of the post and was just content with the answer that my board is on bios 2501 that means it could support the 4690K, so i wanted more opinions before I push this through though
 
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kraelic

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It will not overclock a haswell refresh cpu. Early haswell chips on an older bios version maybe, but the only haswell allowed to OC with any recent BIOS is the G3258 dual core.

You need a little history on the non-z overclocking of 4th gen. It was released with the early 4th gen chips, 4670K and 4770K on the H and B motherboards. Intel did not like that, so they made the vendors stop. Then the Haswell refresh came along, and the Pentium Anniversary edition. I do not beleive the haswell 4690K or 4790K chips ever overclocked in any board other than a Z. The haswell overclocking was brought back for just the G3258. And even then windows got a critical update that hosed overclocking, the 2nd core would drop out or the clocks would revert to stock. Until vendors updated the G3258 overclocking again in their BIOS. G3258 overclocked in a Z board never had trouble from windows update.


 
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supermanu15

supermanu15

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oh ok, but I do see overclocking features and the paramaters like adaptive mode etc in my BIOS, does this mean that it can only overclock the G3258 only?
 
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kraelic

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You can try it but don't expect it to work on anything other than the G3258. It is the turbo multipliers that allow you to overclock, adding voltage 100mv to 200mv helps to get you stable and still use speed step. Throttle to 1600 and up to full speed with some levels in between.
 
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supermanu15

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darn they didnt mention anything too specific that the bios update that enables overclocking on lesser chipsets only work for the pentium lineups -_-

im new to overclocking by the way, can you summarize that in simpler terms? :D
 
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The Paladin

The Paladin

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manual of your motherboard at http://dlcdnet.asus.com/pub/ASUS/mb/LGA1150/B85M-G/E8146_B85M-G.pdf?_ga=2.55046376.2116493297.1499315041-471366222.1493040242

look in that manual for the AI tweaker menu, that is where you will make changes to possibly get an overclocking going.

IKBpmED.png
 
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supermanu15

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kraelic

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4.2 to start, then slowly try 4.3, 4.4, etc. If it isn't stable add 100mv to the offset voltage then try again increasing a little at a time. 125mv, 150mv, 175mv 200mv, the lower the voltage the better. Once it is stable try another bump on the multiplier. Each chip is different, my 4690k does 4.5 on +200mv adaptive on a z97 board. I did not try to fine tune this, there may be more headroom in it The more voltage you use the quicker haswell heats up. Usually 1.2V is safe, 1.325 starts getting toasty. The VRM are much smaller on most MATX boards and can't handle much more than that.
 
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supermanu15

supermanu15

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thank you guys for your help and advice but now i am leaning more on the i7-4790 Non-K as i have read that this chipset wasnt really intended to overclock the i-series, it was only done for the pentium anniversary edition, i want to thank you guys for your efforts please close this thread thank you!
 
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