i5 4670K Overclocking Settings not taking effect

camason86 · Feb 19, 2014

Hey all,

I'm trying to overclock from the base 3.4GHz. I've followed all the guides and changed the appropriate settings in the Bios, but nothing actually seems to change, it just sits at 3.4GHz.

I'm using a ASUS Gryphon Z87 Mobo with the UEFI bios. Basically I'm going to the AI Tweaker tab and adjusting things there. I feel like I'm missing a simple step.

Any advice would be appreciated. Thanks.

Jaco3401 · Feb 19, 2014

What overclock are you attempting to achieve? What type of cpu cooler are you using?

camason86 · Feb 19, 2014

Just experimenting at the moment, but I'd like to go up to about 4.2GHz. Using a Corsair Hydro Series H60 Cooler.

camason86 · Feb 19, 2014

I'm basically following the steps show here: http://www.youtube.com/watch?v=Z7zPu9255ZI or here: http://www.youtube.com/watch?v=PgNU4YvS8oU

But nothing seems to change. If I choose to set the voltage manually I can get that to change, but the clock speed sits at 3.4GHz. If I choose adaptive voltage it doesn't change anything

Jaco3401 · Feb 19, 2014

http://www.tomshardware.com/forum/id-1722630/intel-god-quick-dirty-guide-4ghz-haswell.html Found this guide for haswell OC. You should be able to change multiplier to 41 or 42 without changing any voltages

camason86 · Feb 19, 2014

That's what I thought too. When I adjust the multiplier, though, it doesn't change anything. I've set it to "Sync All Cores" so they all say 42. Clock speed still sits at 3.4GHz.

Jaco3401 · Feb 19, 2014

Did you check that haswell OC guide I posted? Has some good info for your chip

camason86 · Feb 19, 2014

Actually I just followed that a bit more closely and it seems to work now, thanks.

CPU-Z now shows 4.2GHz which is what I was looking for. In the Bios it still shows 3.4GHz but i believe that's normal, right?

I have my CPU Voltage Override at 1.15V and the CPU Input Voltage at 1.75V. So far so good. Do you think those numbers are good?

Jaco3401 · Feb 19, 2014

As long as it'll pass IBT/Prime95/occt stress tests and your temps are not too high you're golden

camason86 · Feb 19, 2014

Sounds good, thanks. I lowered the voltages to 1.1 and 1.7 respectively. Still seems fine. I'll run those tests though and see what I get.

Can you recommend ideal voltage settings for 4.2GHz? I'm guessing what I have is fine but I don't want to be running at a higher voltage than I need to.

Thanks again for the help.

camason86 · Feb 19, 2014

IBT was successful on Standard and High stress levels. Max temp was 68 C... is that on the high end or is that okay?

I'll run Prime95 for a bit and see what I get.

Jaco3401 · Feb 19, 2014

All sounds good. I think stock voltage is right around 1.1 so you did just fine. 68 is great

camason86 · Feb 19, 2014

Sweet. Just did IBT at Very High and it passed. Max temp was 70 C. Are these temps realistically going to be hit when gaming, or is IBT really extreme? From what I understand 68-70C max isn't too bad.

Jaco3401 · Feb 19, 2014

68-70 is great. During gaming you won't hit that. IBT is designed to be much more intensive than the newest games.. Sounds like a good OC

camason86 · Feb 19, 2014

Alright cool. Well I just upped it to 4.4GHz at 1.15V, now hitting 75C max from the Very High test in IBT. Might dial it down a bit again but this is fun to play around with. My first time really overclocking so i'm learning as I go. I read that the 80C+ mark is where you may start running into problems so I guess hitting 75C is still acceptable.

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