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Old 04-04-2009, 07:05 PM   #1 (permalink)
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Default CPU-Z Clock Not Matching BIOS Reading

Ok my current processor is a Intel Core 2 Duo E8500 Wolfdale 3.16GHz. I build the entire computer a few months ago and set up BIOS back then, everything went smoothly and most things were auto-detected. CPU FSB was reading as 1333 MHz, multiplier was reading as x9.0, and clock speed was it's anticipated 3166 MHz.

Just today I ran Cpu-z and it's showing my Core Speed as 2000.2 MHz, Multiplier as x 6.0, Bus Speed as 333.3 MHz, and Rated FSB as 1333.4 MHz (these values are exactly the same for both Core #0 and Core #1.)

I'm just wondering if this is an error or if my CPU is actually only running at around 2 GHz.

Any help would be appreciated. Thanks.

Edit: One thing I just noticed. It's idle when it reads 2000MHz but jumps up to the normal 3167MHz when I put load on it like open a program or something. Any ideas if this is normal or not?

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Old 04-04-2009, 07:19 PM   #2 (permalink)
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Default Re: CPU-Z Clock Not Matching BIOS Reading

It's normal. It's intel speed stepping.


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Old 04-04-2009, 07:44 PM   #3 (permalink)
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Default Re: CPU-Z Clock Not Matching BIOS Reading

Disable it in the BIOS if you'd rather have it running at full clock speed all the time. EIST and C1E I believe are what they're called in some BIOS.
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