Is 4.7GHz on 1.3V safe for I5-4670K?

[Jared Jensen]

I have my I5-4670K CPU overclocked at:
Core speed: 4.7GHz
CPU Core voltage 1.3
CPU Cache voltage 1.25
CPU input Voltage 1.95
CPU cache ratio 35
I have a Hyper 212 EVO with 2 fans and I have a total of 7 fans in my Phantom 410 Case.
I was wondering if this is a safe overclock because the core voltage is kinda high for my liking but my system wouldn't run stable with anything lower. My temps are around 60-70 degrees using Aida System Stability test running at full load for a few hours. I did however use Intel Burn Test and the Temps shot up to 80 degrees give or take 3 or 4 degrees here and there. That worried me and It would only go through about 6 passes before crashing. I'm not sure if I should keep this overclock or modify it a little, Or if I should go down to maybe 4.6 or 4.5Ghz until i can reach an acceptable voltage. Any help is appreciated.

 

[XdbodzX]

Hmmm. I would never change the voltage unless you know EXACTLY what you are doing.

4.7GHz seems very high for a cpu stock clocked at 3.4GHz.

 

[Jared Jensen]

I did a lot of research to find voltages that i could use to overclock my processor. I can run 4.6Ghz at 1.28V but anything lower then that and I get BSOD after running stress tests. So should I just use the 4.6Ghz Profile to be safe?

 

[PCDave]

4.7ghz at 1.3v is fine, but dont go any higher than that. Your temps are unbelievable for your overclock, especially with that cooler.

You have a great overclocker for Haswell, good luck in your future overclocking endeavors.

 

[theProbe]

I can't say i believe your tests regarding the temperatures. On stock speeds, using IBT i hit 100c with a cooler not that much weaker then the 212.

 

[Jared Jensen]

4.7ghz at 1.3v is fine, but dont go any higher than that. Your temps are fine for your overclock, especially with that cooler.

You have a great overclocker for Haswell, good luck in your future overclocking endeavors.

Thank you! This is my first computer build and I wanted to Try Overclokcing. I used the Asus Ai suite III and its auto overclocking function at the beginning and it only overclocked to 4.3Ghz on 4 cores and 4.4Ghz on 2 Cores on stock voltages and it ran stable but I wanted to see if it would go further and I read many posts about how bad it is to use that software for overclocking, so I decided to put everything on Manual instead of Adaptive and adjusts my voltages for overclocking by following some guides. Then I increased my multiplier by one and then I ran Aida 64 Stress test for a few hours and then I bumped it more. I haven't tried going to 4.8Ghz but I don't want to because I know that's a bad idea. Well thanks again for your help. It put me to ease with my overclock. As I said before, I tried lowering the voltage slightly but anything lower then 1.3V is very unstable and crashes almost instantly. So far I have been running my overclock for a day and a half no problem and when I play games, It usually doesn't go over 60c

 

[theProbe]

4670k with 6 cores 😀 hahaha

 

[Jared Jensen]

4670k with 6 cores 😀 hahaha

Oh haha 😉 what I meant is 4.3Ghz on all 4 Cores and 4.4Ghz on 2 Cores If I'm using the system when it only needs two cores.

 

[gddctr]

Can I ask how it's going a month later? I have the same CPU and Cooler as you do and I'm going to wind up OC'ing it soon.

 

[Mr-C]

and what about now? haha, as if any answer ever would come...