What is more correct ?

yasserBasha · Apr 23, 2013

Hi guys ...

So, in terms of overclocking an Intel CPU :

Most people say that you cannot OC your CPU on a B75 or H77 chipsets and you need a z77 chipset to be able to OC.
But this article on wikipedia :

http://en.wikipedia.org/wiki/LGA_1155#Ivy_Bridge_chipsets

says that you can OC on these MBs, so why people keep saying that you can't ?
Also a side question : what is (Bclk)?

Thanks in advance, I appreciate all your help.

dudewitbow · Apr 23, 2013

bclk is base clock. on a sandy/ivy, you want to avoid using that as bclk affects other hardware on the system, its more or less how SB/IB was designed which made bclk not a way to overclock safely.

bgunner · Apr 23, 2013

you can OC on those boards but the VRM and Chips are of lower quality. the Z77 boards are made with OCing in mind and will produce a higher stable OC.

BCLK is base clock. all multipliers go off this number. IF your cpu is not unlocked then this is the only way to OC. example cpu multiplier is 34. the base clock is 100. that makes the cpu frequency 34x100= 3400MHz or 3.4 Ghz. Now up the base clock to 120 you get 34x120= 4080Mhz or 4.08 GHz.

Edit: The BCLK also affects the Ram speed. This is because the ram is set by a multiplier also. like I said earlier all multipliers go off the BCLK.

Onus · Apr 23, 2013

You can typically add only a few MHz to the base clock before its effect on other components produces instability. You can sometimes force the CPU to run all of its cores at its highest-binned "turbo" frequency too, but that's about it.

bwrlane · Apr 23, 2013

Above all true but the key is that you can only oc with bclk with b and h.

Saying that is really the same as saying you can't oc at all.

Bclk is the system clock. Adjusting it even by a small amount can make your whole computer unstable.

The real way to oc is to use the multiplier. Not possible on b and h chipsets.

yasserBasha · Apr 23, 2013

bgunner :

Ok, Let's say i have a B75 MB and 8gb of RAM (speed 2133)...Intel CPUs clearly doesn't support ram speed above 1600, so if i OC'd my CPU with BCLK what will happen to the ram ?

bwrlane · Apr 23, 2013

yasserBasha :

bgunner :

Ok, Let's say i have a B75 MB and 8gb of RAM (speed 2133)...Intel CPUs clearly doesn't support ram speed above 1600, so if i OC'd my CPU with BCLK what will happen to the ram ?

You can only get about 5% max out of bclk. It's not just the ram, but every other component in your system.

yasserBasha · Apr 23, 2013

Thanks to ALL of you guys very much

ALL of your answers have been an enlightenment, I appreciate you took time to answer

Thank you VERY much

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