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I5 3570k

Last response: in Overclocking
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November 4, 2012 8:35:03 PM

Hello!
I've just put a rig together, I'm using a 3570k, a gigabyte z77-ds3h, 8gb vengeance RAM. I want to overclock my cpu, so I go into 3d bios and set my cpu to 4Ghz. It boots into windows so I run prime 95 and cpu-z, and my cpu frequency is only 3.4? What am I doing wrong? I've updated to the latest bios, and I'm certain everything is being saved.

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a b à CPUs
November 4, 2012 8:47:59 PM

With ivy and sandy bridge there is a thing called CPU boost and essentially what it means is that when you run a intense program it will boost up to those clocks for example if you were to run a game it would ramp up to 4 ghz.

Unless you manually turn off the cpu boost and manually set voltages you won't always have 4 ghz pumped out.
November 5, 2012 2:44:30 PM

So what you're saying is that when you overclock you only overclock the boost speed?
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November 5, 2012 2:56:55 PM

I've just tried it again with the turbo left on, cpu-z says it's at 4ghz i then open RealTempGT and then the cpu drops back down to 3.4ghz again.
a b à CPUs
November 5, 2012 4:01:38 PM

well you can turn off turbo boost and you would get a stable 4 ghz. But intel chips are shipped with a boost. Even graphic cards now are going with a boost tech.

Stock
Intel core i5 3570 3.4 ghz stock 3.8 ghz turbo boost
November 5, 2012 4:08:40 PM

thats the problem - I have turned off turbo boost, and overclocked the cpu to 4ghz, the bios says it's at 4ghz but cpu-z doesn't.
a b à CPUs
November 5, 2012 4:34:39 PM

Hmm I'm unsure then. I wouldn't turn off boost I'm unsure the chips were mean't to work at a stable high cpu frequency. But maybe you could see if cpu throttling is on.
!