OC on a H77 board

[draza]

Hi,

seeing how Ivy OC quickly leads to high temperatures and difficulties cooling the processor, I was planning on running on the stock voltage and simply go as high as I can. This appears to be around 4.2GHz (less or more, depending on the specimen).

But then I thought - why would I pay "premium" for Z77 board if I can get H77 and achieve the same result?

Let's see if I got the "math" right - H77 supports "limited overcloking", which boils down to 4 bins over the stock. Assume 3570K, which runs on 3.4, turbos up to 3.8 on a single core - shouldn't I be able to overclock this to 3.8, turbo to 4.2? IIUC, this ends up being exactly the same "safe" OC as explained above.

If so, and of course only for those not seeking the max OC possible, this could be a great value - I've seen H77 boards for half the price of the well known Z77 boards.

 

[aaksheytalwar]

Nope, can't do close to 4.2.

 

[draza]

Nope, can't do close to 4.2.

Would you care to elaborate? Why not?

 

[T_Yamamoto]

H77 is a non overclockable chipset. Only B75, Z75, Z77, Z68, P67 will allow you to overclock

If you were to do a limited overclock I would have gone with a 3450 or 3550 because although locked, they can be overclocked to 4.1 (Max)

 

[draza]

H77 is a non overclockable chipset. Only B75, Z75, Z77, Z68, P67 will allow you to overclock

I don't think so, though Intel is somewhat secretive regarding what the following means: " Intel H77 Express Chipset also enables overclocking features of unlocked 3rd generation Intel® Core™ processors."

See for yourself here, Intel's description of H77 chipset.

Looking around the net, it's not clear what kind of overclocking is possible, hence my question.

Could anyone with a H77 board please step up?

 

[ShintaiDK]

H77 is a non overclockable chipset. Only B75, Z75, Z77, Z68, P67 will allow you to overclock

If you were to do a limited overclock I would have gone with a 3450 or 3550 because although locked, they can be overclocked to 4.1 (Max)

B75 doesnt OC. Only the Z and P series.

 

[ShintaiDK]

I don't think so, though Intel is somewhat secretive regarding what the following means: " Intel H77 Express Chipset also enables overclocking features of unlocked 3rd generation Intel® Core™ processors."

See for yourself here, Intel's description of H77 chipset.

Looking around the net, it's not clear what kind of overclocking is possible, hence my question.

Could anyone with a H77 board please step up?

I got a H77 board with an unlocked 3570K. And I can tell you to forget any OC dreams.

 

[draza]

I got a H77 board with an unlocked 3570K. And I can tell you to forget any OC dreams.

OK, fair enough. Looking a bit more around the net yields the same answer... so it's gonna have to be Z77 then.

Thanks.

 

[hoodlum90]

According to Intel you can increase the multiplier on the H77 boards if you have one of the K CPUs.

http://communities.intel.com/thread/29206

 

[SPBHM]

OC on lga 1155 only works properly for P67/Z68/Z77/z75

on everything else, you are lucky if you can OC via BCLK (max around 7%) and nothing more (in terms of CPU OC)

 

[hoodlum90]

OC on lga 1155 only works properly for P67/Z68/Z77/z75

on everything else, you are lucky if you can OC via BCLK (max around 7%) and nothing more (in terms of CPU OC)

According to the Intel link I posted above, this only applied to the H67. The H77 allows you full access to the multiplier. You just can't adjust the voltage, that still requires the Z series.

 

[SPBHM]

According to the Intel link I posted above, this only applied to the H67. The H77 allows you full access to the multiplier. You just can't adjust the voltage, that still requires the Z series.

the answer is incorrect...

some MBs allow you to change the CPU multiplier with H77/H67, but when you load all the cores it will drop to the maximum turbo mode (+1x for all cores)...