What voltage should i run for a 4.6 Ghz overclock on a i7 4790k

[Vengeance_K1ng]

Yes, I would shut the test down if you are passing 85c though. Typically you don't want to go above 80 but a stress test will cause more heat than any real world activity so there is a little wiggle room to go beyond for a stress test. Is that stock voltage? 

no this is at 1.320V

[The Official Czex]

on the same voltage?

 

That 360mm AiO will get you to 4.8GHz on 1.4V.

[SeanBond]

no this is at 1.320V

Then push it a little more. You want to pick your voltage before you see what the cpu will do at that voltage.

[Enderman]

I wouldn't say that. I did a 2 hour stress test which passed and immediately crashed on launching cinebench when I was searching for my latest OC. lol Although people who say 24 hours sound ridiculous to me. 

how does that contradict what I said?

 

of course you need to test with more than just one stress test

it can be stable in one but not in another

 

what i said was that if it passes 15 mins, then its almost surely stable (for that test)

you can let it run for 24 hours and it still wont crash, but it might crash with another test

[Superspeed07]

My temps fine at 4.6 ghz at 69 C

 

Under 80 and you are fine, the chips can take a bit more, but I wouldn't be comfortable with it

[Vengeance_K1ng]

Try a push to 4.7GHz if you want.

will it hurt the chip?

[The Official Czex]

will it hurt the chip?

 

If your temps stay under 85C under full load.

[Vengeance_K1ng]

That 360mm AiO will get you to 4.8GHz on 1.4V.

i ran cinebench on 4.7 ghz and i got to 78C

[Vengeance_K1ng]

If your temps stay under 85C under full load.

cinebench got 78C

[The Official Czex]

i ran cinebench on 4.7 ghz and i got to 78C

 

Try for 4.8GHz. If you're stable, decrease voltage slowly until you hit the gap between stability and BSOD.

[Vengeance_K1ng]

Try for 4.8GHz. If you're stable, decrease voltage slowly until you hit the gap between stability and BSOD.

Could i just stay on 1.32 volts @4.6 ghz and decrease volts from there

[The Official Czex]

Could i just stay on 1.32 volts @4.6 ghz and decrease volts from there

 

Sure.

[SecretAuthor]

Try to get it stable at a lower voltage, if you can. Had my 4790k at stock 4.4ghz @1.10v as well as 4.8ghz @1.29v. And, IMO, my chip is just average.

[DeathlessGaming]

I would try 1.32-4 for your overclock as that is what I use.

[Cheddle]

will it hurt the chip?

 

Mhz will not. 

 

high volts will.

 

high temps can.

 

Could i just stay on 1.32 volts @4.6 ghz and decrease volts from there

 

yes,

 

also try and use an adapative/offset voltage rather than a fixed/constant voltage - be careful when changing to adaptive/offset as it can actually be higher volts than fixed in some instances so watch your peak voltage.

 

I stress test as follows

 

3 x Cinebench R15 runs, 1 x XTU 5 mins stress, 1 x XTU benchtest, 10 min AIDA64 stability test, 2+ hours gaming / browsing.

 

I then don't try and overclock/adjust anything else until I have given it a good solid 30+ hours of use

 

Ive used this method to get 4.65ghz stable at 1.28v on my 5820k - offset voltage will very rarely peak the volts to 1.3v and quite often runs it below 1.2v with idle on 1v

 

That said if I fire up Linx it will fail to pass without errors and will run my CPU 15-20 degrees hotter than anything else

 

So yeah, get comfortable on the settings you have, for Haswell, provided the temps arnt too high (over 83 on cores) and the volts arn't too high (below 1.35v is generally considered safe, higher is likely to shorten the life of your cpu, 1.5v-2.0v can pop a cpu) then get as good a clock as you can, (dont forget cache) and then start to creep the volts down, drop it by 10mv and see if its stable using my above method, each 2 hours u pass of benches/gaming drop it another 10mv - if you BSOD up it by 10mv. 

 

ggez

[Vengeance_K1ng]

Mhz will not. 

 

high volts will.

 

high temps can.

 

 

yes,

 

also try and use an adapative/offset voltage rather than a fixed/constant voltage - be careful when changing to adaptive/offset as it can actually be higher volts than fixed in some instances so watch your peak voltage.

 

I stress test as follows

 

3 x Cinebench R15 runs, 1 x XTU 5 mins stress, 1 x XTU benchtest, 10 min AIDA64 stability test, 2+ hours gaming / browsing.

 

I then don't try and overclock/adjust anything else until I have given it a good solid 30+ hours of use

 

Ive used this method to get 4.65ghz stable at 1.28v on my 5820k - offset voltage will very rarely peak the volts to 1.3v and quite often runs it below 1.2v with idle on 1v

 

That said if I fire up Linx it will fail to pass without errors and will run my CPU 15-20 degrees hotter than anything else

 

So yeah, get comfortable on the settings you have, for Haswell, provided the temps arnt too high (over 83 on cores) and the volts arn't too high (below 1.35v is generally considered safe, higher is likely to shorten the life of your cpu, 1.5v-2.0v can pop a cpu) then get as good a clock as you can, (dont forget cache) and then start to creep the volts down, drop it by 10mv and see if its stable using my above method, each 2 hours u pass of benches/gaming drop it another 10mv - if you BSOD up it by 10mv. 

 

ggez

Intel i7 4790K Asus Maximus VII Ranger LGA 1150 Origin 360 mm cooler aio 4.6 Ghz 46 100 Mhz 1.225 V

 

 

Are these good voltages?

Edited December 8, 2015 by Vengeance_K1ng

[Cheddle]

Intel i7 4790K Asus Maximus VII Ranger LGA 1150 Origin 360 mm cooler aio 4.6 Ghz 46 100 Mhz 1.225 V

Are these good voltages?

They are definitely better than average

[grayperview]

I can get 4.6ghz on mine at 1.21v its stable 99%, the thing is though if i increase the voltage upto about 1.26 its still only 99% stable. 

 

It tends to crash encoding video's, seems stable in stress tests.

 

For now i have given up on overclocking and I'm happy with 4.4ghz.

 

I'm finding the Devils canyon chip, more fiddly than my ivy bridge 3770k.

[threebills]

Its all the silicon lottery,some chips will be beter or worse,i can tell you that i have my 4790k at 4.6 ghz and 1.23 volts and is cool as a cucumber,if i got 4.7,i have to thrwos teh volts up a bunch,like 1.3 ish.