CPU ignores base clock, only runs at Turbo clock ?

[chivs688]

I've been trying to get my i5 2500k overclock to work (weird boot issue but besides the point), and during my fiddling I had to reset the BIOS to default settings.

Booted up, checked CPU-Z and HWinfo, and the CPU is running at either 1,600 MHz (speedstep, all fine) or 3,700 MHz (the Turbo clock for 1 core).

Not once has it run at 3,300 MHz (the base clock).

Going back into the BIOS and even in there it's showing it running at 3,700 MHz.

Any idea what's going on?

Turning off Turbo Boost makes it run at 3,300 MHz, but that seems to be the only time it does.

 

[chivs688]

What you using to measure cpu speed?

Cpu z always shows the fastest core so if you have one core set to 3700, and the rest 3300, it will show 3700..

Does that help?

I was using both CPU-Z and HWinfo side by side, so I could see each core individually in HWinfo. Not a single core even touched 3,300 MHz for even a split second..