overclock i5 8600k

[icon_of_sin]

I am plannong on makeing a new pc with a i5 8600k

what sort of cooler will i need to get it overclocked to 4.9ghz?
when looking for a cooler how will i know if its good enough

i dont want to go as fara liquid cooling

[Bad 💀 Motha]

Overall, if you're going to OC an i5, then grab a beefier cooler that's meant more for an i7 class of CPU, then you should be fine. If you go with something like Noctua or BeQuiet premium class of coolers; you'll be sure to cool any consumer class CPU regardless what you OC it to for the most part. Cause any higher and you'd need LN2 (Liquid Nitrogen) to really go further; like beyond 5.2GHz or so.

But please also understand, it's not just your CPU Cooler, you ambient room temp and your overall Case Airflow will play a big role in all of this. The biggest thing folks tend to overlook is Case Airflow, and having a lack of case fans providing proper or more than enough, airflow wise. If a Case has a fan placement, fill it... with maybe the exception of a side panel that has placements, as large tower coolers get in the way of that, and side panel airflow tends to disrupt the whole mix anyways.

[AzKat 🐔]

^ To add to this, the "way" your air flows through your pc also matters, dragging hot air from the top and throwing it out the bottom is not a good idea.

You should always have your ventilators "sucking up" air from the bottom and blowing it upwards (because very basic physics is that hot air rises and cold air lowers, so it's always going to be more hot at the top than at the bottom).

[Arya]

Publicado originalmente por AzKat:

^ To add to this, the "way" your air flows through your pc also matters, dragging hot air from the top and throwing it out the bottom is not a good idea.

You should always have your ventilators "sucking up" air from the bottom and blowing it upwards (because very basic physics is that hot air rises and cold air lowers, so it's always going to be more hot at the top than at the bottom).

While that's true in theory, research has shown it doesn't make much practical difference. Theoretically, putting your radiator on the front of your case and intake through it is one of the dumbest possible case layouts. But it works just fine, and it's usually within a degree of other layouts. Assuming the case itself has decent airflow.

[Bad 💀 Motha]

Publicado originalmente por Wolfey:

Publicado originalmente por AzKat:

^ To add to this, the "way" your air flows through your pc also matters, dragging hot air from the top and throwing it out the bottom is not a good idea.

You should always have your ventilators "sucking up" air from the bottom and blowing it upwards (because very basic physics is that hot air rises and cold air lowers, so it's always going to be more hot at the top than at the bottom).

While that's true in theory, research has shown it doesn't make much practical difference. Theoretically, putting your radiator on the front of your case and intake through it is one of the dumbest possible case layouts. But it works just fine, and it's usually within a degree of other layouts. Assuming the case itself has decent airflow.

Actually there is not one thing wrong with doing that, why?
Because unless you have a serious thermal issue, your Rads and Tubes should never heat up.
So having a Rad in the front of the Case and using those Fans for cold air intake is perfectly fine.

[icon_of_sin]

i see that the "BeQuiet's Dark Rock Pro4" was mentioned before
what about the BK009 Pure Rock Compact ?

[Arya]

Publicado originalmente por icon_of_sin:

i see that the "BeQuiet's Dark Rock Pro4" was mentioned before
what about the BK009 Pure Rock Compact ?

It's a great cooler, but it doesn't have the Surface Area for your needs. Better to go with the full-size heatsink.

[icon_of_sin]

also
i am using a calcuilator to determine how big a PSU i will need
depending on where i set my CPU voltage it ranges from 400w - 1200w

how high will i have to set a 6800k vcore in order to reach 4.9ghz

[Arya]

Publicado originalmente por icon_of_sin:

also
i am using a calcuilator to determine how big a PSU i will need
depending on where i set my CPU voltage it ranges from 400w - 1200w

how high will i have to set a 6800k vcore in order to reach 4.9ghz

I honestly can't say. All CPUs are slightly different, all 8600Ks will run a slightly different vCore. You'll probably be below 1.40v but it really depends on your specific 8600K and how it performs. My 8700K is way below that, but it's a really nice one.

vCore doesn't effect the PSU in any meaningful way, so I would put that calculator aside. Your PSU demand comes more from your choice of GPU, for a single GPU build I'd recommend around a 600-650W model. And for dual GPUs I'd go with 900ish. Just for maximum safety and overkill.

I have an 8700K that I normally run at 4.9 and it's very happily running off a 760W Corsair AX760i. Corsair AX would be my first recommendation for a PSU, they're ridiculously overbuilt. Perfect for overclocking. And they're rated for over ten years of hard service.

And finally - why an 8600K? Hyperthreading makes a huge performance difference in a lot of games, and don't really make the 8700K run any hotter. If you're gonna spend the money on an OC build, why not go with the more feted CPU?

[Elon Mosque]

Publicado originalmente por icon_of_sin:

also
i am using a calcuilator to determine how big a PSU i will need
depending on where i set my CPU voltage it ranges from 400w - 1200w

how high will i have to set a 6800k vcore in order to reach 4.9ghz

Your total wattage requirement will depend on your rest of the build as well not just the CPU. Of course the Vcore affects the overall power draw but not by a huge margain that will need a bigger PSU.
Usually you need around 1.35-1.38 to reach 5Ghz in an mediocore chip.
You can always consider delidding if you want to reduce your tempratures further.
And may reduce the voltage required a bit.

[icon_of_sin]

Publicado originalmente por Agnes Washington:

Publicado originalmente por icon_of_sin:

also
i am using a calcuilator to determine how big a PSU i will need
depending on where i set my CPU voltage it ranges from 400w - 1200w

how high will i have to set a 6800k vcore in order to reach 4.9ghz

Your total wattage requirement will depend on your rest of the build as well not just the CPU. Of course the Vcore affects the overall power draw but not by a huge margain that will need a bigger PSU.
Usually you need around 1.35-1.38 to reach 5Ghz in an mediocore chip.
You can always consider delidding if you want to reduce your tempratures further.
And may reduce the voltage required a bit.

um
i dont think an i5 8th gen is a mediocre chip!

[Arya]

Publicado originalmente por Agnes Washington:

Publicado originalmente por icon_of_sin:

also
i am using a calcuilator to determine how big a PSU i will need
depending on where i set my CPU voltage it ranges from 400w - 1200w

how high will i have to set a 6800k vcore in order to reach 4.9ghz

Your total wattage requirement will depend on your rest of the build as well not just the CPU. Of course the Vcore affects the overall power draw but not by a huge margain that will need a bigger PSU.
Usually you need around 1.35-1.38 to reach 5Ghz in an mediocore chip.
You can always consider delidding if you want to reduce your tempratures further.
And may reduce the voltage required a bit.

I know de-lidding has a terrible reputation, but it's pretty safe thanks to modern tools. A Rockit-88 makes it virtually idiotproof, and even re-assembles the CPU for you afterwoulds. I've done it myself, it makes a huge difference for Gen8 CPUs and it's really something anybody can do now. It's just a little messy, Liquid Ultra loves to spurt everywhere.

Publicado originalmente por icon_of_sin:

Publicado originalmente por Agnes Washington:

Your total wattage requirement will depend on your rest of the build as well not just the CPU. Of course the Vcore affects the overall power draw but not by a huge margain that will need a bigger PSU.
Usually you need around 1.35-1.38 to reach 5Ghz in an mediocore chip.
You can always consider delidding if you want to reduce your tempratures further.
And may reduce the voltage required a bit.

um
i dont think an i5 8th gen is a mediocre chip!

That's not what she means. What she means is, a normal 8600K needs about 1.35v for that CPU clock. A bad 8600K might need 1.4v. And a really good one might need 1.3v.

CPUs are idiosyncratic and rarely match Blueprint. So you'll find a huge range of vCores for a given overclock.

[Elon Mosque]

Publicado originalmente por Wolfey:

Publicado originalmente por icon_of_sin:

um
i dont think an i5 8th gen is a mediocre chip!

That's not what she means. What she means is, a normal 8600K needs about 1.35v for that CPU clock. A bad 8600K might need 1.4v. And a really good one might need 1.3v.

CPUs are idiosyncratic and rarely match Blueprint. So you'll find a huge range of vCores for a given overclock.

Yess thats what i meant 👌👌. Before i purchased my 7700k i read a lot of reviews and i realized they run hot when OC'd so delidding was part of a must have and an adventure for me. Now it runs at 63-65 maximum. So in my opinon if you get a good cooler ( from the ones i have listed above and also suggested from others) + delid i can say you can even reach 5Ghz mark.

[Arya]

Publicado originalmente por Agnes Washington:

Yess thats what i meant 👌👌. Before i purchased my 7700k i read a lot of reviews and i realized they run hot when OC'd so delidding was part of a must have and an adventure for me. Now it runs at 63-65 maximum. So in my opinon if you get a good cooler ( from the ones i have listed above and also suggested from others) + delid i can say you can even reach 5Ghz mark.

I would say it's absolutely doable. Gen 8 have a couple of minor improvements over Gen 7, even a subpar 8700K should handle 5.0 GHz comfortably. I've never heard of one that couldn't. The trade-off for that is even more heat, de-lidding is almost obligatorty for overclocked Gen 8s.

[vadim]

Publicado originalmente por Wolfey:

I know de-lidding has a terrible reputation, but it's pretty safe thanks to modern tools.

What do you mean by that? Safe because delidded CPU rarely faults immediately? In this case your claim is true. But this CPU can start to degrade fast. And in general, it SHOUD degrade.
I think, delidding is most stupid thing which anyone could do with his CPU if he plans to use itfor s long time.

[Elon Mosque]

Publicado originalmente por vadim:

Publicado originalmente por Wolfey:

I know de-lidding has a terrible reputation, but it's pretty safe thanks to modern tools.

What do you mean by that? Safe because delidded CPU rarely faults immediately? In this case your claim is true. But this CPU can start to degrade fast. And in general, it SHOUD degrade.
I think, delidding is most stupid thing which anyone could do with his CPU if he plans to use itfor s long time.

Every component degrade its electronics. Wolfey means you can screw a lot of things while delidding. Also delidding is not stupid and funny you relate it to longetivity because you probably will have longer lifespan with an properly delidded cpu. Reduced temps would be no 1 reason to that.