Motherboard for 4ghz overclock on 4770k

[breads]

First, could you please confirm this bit of info? Is it true that using standard turbo boost, a 4770k can only do up to 3.7ghz on all 4 cores?

Second, what sort of motherboard is needed to do a stable overclock at 4ghz on a 4770k? For example a z87 g45 has 8 power phases, but a z87 g65 has 12. Can a g45 handle 4ghz long term, or would a motherboard with 12 phases really be necessary? It doesn't need a lot of features since this build would only have a couple hard drives and 1 graphics card. The motherboard and cpu would ideally last for 3 or 4 years.

 

[EarthDog]

True.

G45 will handle 4Ghz long term, absolutely.

 

[Eldonko]

Turbo on 4770K is 3900Mhz (all cores) and pretty much any board can run that without issue.

 

[breads]

Thanks for the responses. My understanding was that the 4770k could only boost to 3.7ghz on all 4 cores, and could do 3.9 with 1 or 2 cores. Therefore, a 4ghz overclock on 4 cores would be equal to about an 8% overclock (4/3.7). Can someone please clear this up?

Also, so any motherboard that has 8 power phases should be able to handle a 4gz overclock long term without any issues? A 12 power phase board is not needed?

 

[Woomack]

Any board is going to run above 4GHz. Better power phases are usually needed for much higher overclock like 5GHz+. Even simple boards can support at least ~200-250W load and these CPUs won't have more than ~100W at 4GHz.
Many Z87 boards dedicated for overclocking have 8 cpu phases ( like GB Z87X-OC ) . I think that even 4 would be fine for something like 4-4.2GHz.

 

[EarthDog]

Turbo on 4770K is 3900Mhz (all cores) and pretty much any board can run that without issue.

It is? At least on this biostar, as I was dealing with it last night, and I think the mpower max, it was 37 all cores, 38 three cores and 39 one/two cores? Asus 'cheats' and runs a constant 3.9ghz...

 

[Woomack]

auto settings on my GB Z87X-OC also give 3900MHz under full load

 

[EarthDog]

Hmm...perhaps its board specific, or I'm just not paying attention close enough, lol!

 

[Eldonko]

Yeah must be board specific, looks like GB and ASUS do 3.9 but Im not sure on other manus.

 

[scoutcamper]

My MSI MPower does 3.9 on all cores (not that it ever did it for more than a few minutes, steady OC at 4.4ghz )

 

[EarthDog]

Seems like I'm not paying attention then!

 

[Theocnoob]

First, could you please confirm this bit of info? Is it true that using standard turbo boost, a 4770k can only do up to 3.7ghz on all 4 cores?

Second, what sort of motherboard is needed to do a stable overclock at 4ghz on a 4770k? For example a z87 g45 has 8 power phases, but a z87 g65 has 12. Can a g45 handle 4ghz long term, or would a motherboard with 12 phases really be necessary? It doesn't need a lot of features since this build would only have a couple hard drives and 1 graphics card. The motherboard and cpu would ideally last for 3 or 4 years.

Why do you only want 4Ghz? Why not go to 4.4? It's achievable quite easily on Haswell. You'll want a slightly up-market motherboard, of course, whereas 4Ghz can be run on a piece of cardboard with a pistachio wired to it for VRM.