Core i5 2500k OC problem?

[ethanwipp]

Today I tried to OC my 2500k (obviously) to 4.0GHz. The Mobo i have is a Gigabyte GA-Z77X-UP4TH Rev 1.0. So, i got and adjust my multiplier to 40. I then save and exit (volt was at 1.240). Windows boots and i check my system properties. They say

Processor: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz 5.90GHz

I then check CPUZ and it says the processor is core i5 2500k @ 3.30ghz

What's up with this? I clocked back to 3.3ghz to be safe until i got an answer. Any ideas why all i see is 3.3 or 5.9?

 

[payturr]

Did you run Prime95? I feel like your voltage is a bit low to have it run at 4.0GHz with a multiplier that high.

 

[ethanwipp]

I didn't run anything because i was afraid it would run at 5.9ghz

 

[payturr]

Trust me, it won't. Change the voltage to about 1.28.

 

[ethanwipp]

So if i set the OC multiplier to 40, even though it says 3.30 and 5.9 its actually 4.0??

 

[payturr]

It won't actually be 5.9, the multiplier would have to be higher. Tell me, does your board have auto-overolting options? What board do you use?

 

[ethanwipp]

Yes im pretty sure i saw it does. The board is in the OP

 

[payturr]

If in your BIOS, turn it off - that's definitely causing issues.

 

[ethanwipp]

Alright im running Prim95 now. CPU-Z says its clocking at 4.0ghz now . However in CPU-Z its saying the core voltage is only 1.164V. Will this rise if it needs to? Because in the BIOS its set to 1.28 like you said

 

[payturr]

It will, it changes just like clockspeed! You were able to turn off any auto-overclocking features of the board?

 

[ethanwipp]

I turned off overvolt. I didnt know the other stuff. I turned turbo boost off aswell

 

[payturr]

You mean you turned off automatic overvolting, right?

 

[ethanwipp]

Yes its disabled

 

[ethanwipp]

Best answer selected by ethanwipp.

 

[ethanwipp]

Thanks man. Question answered. Close thread plzr