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CPU multiplier shows 45 in the BIOS, yet shows 43 on everything else

Last response: in Overclocking
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March 3, 2013 11:15:33 PM

Hello, I have an i5-3570k, trying to overclock with a P8Z77-V PRO motherboard. For whatever reason, my multiplier shows that it is at 45 in my BIOS, but when I test it on Prime95, it shows that it is at 43. I turned off Speedstep and disabled C1 (Not sure what this does, exactly, but everyone is saying to do it). When I go back into my BIOS, it shows it's still on 45 and should be running at 4.5 GHz. I also have my load line calibration on high (50%) if that matters.

I have done searches on here and can't seem to find the answer.

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March 4, 2013 2:11:39 PM

update your bios, had same problem, worked fine after updating bios to newest version, sometimes bios just mess up. same issue before, bios shows 45x, but actual is 43x.
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March 4, 2013 2:11:44 PM

update your bios, had same problem, worked fine after updating bios to newest version, sometimes bios just mess up. same issue before, bios shows 45x, but actual is 43x.
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March 4, 2013 6:18:33 PM

Try upping your TDP by +15W, it could be that your chip isn't getting enough power under load.

-SublimeOrangeUK
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March 4, 2013 7:54:00 PM

Best answer selected by TienNguyen.
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March 4, 2013 7:54:28 PM

Thanks, guys! JC, your answer fixed it.
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