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01-24-2008, 05:37 PM
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#1 (permalink)
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Join Date: Dec 2006 Posts: 19,809
|  CPU Speed Changing? Speedstep and Cool and Quiet Technology Explained
I've seen a billion threads like these already about people not seeing the right speed, so I thought I'd clear it up, also kill two birds with one stone by also explaining Cool and Quiet Technology Explanation
Cool and Quiet and Speedstep are both power saving features used by AMD and Intel processors respectively, what they do is reduce the Heat and (possibly Loudness) by reducing the clock speeds when Idle by dropping the Voltage and the Multiplier CPU's having Speedstep and Cool and Quiet Technology: Intel:
Intel Celeron Dual-Core
Intel Core i7
Intel Core i7 Extreme
Intel Core 2 Duo
Intel Core 2 Extreme
Intel Core 2 Quad
Intel Pentium D (just the Preslers)
Intel Pentium Dual-Core AMD:
Athlon64
Athlon64 X2 FX
Athlon64 X2
Opteron
Phenom X3
Phenom X4
Phenom II X3
Phenom II X4 Disabling These Features Intel: you simply disable C1E and EIST in the BIOS AMD: Disable CNQ in your BIOS (I need an accuracy check on this one)
Last edited by vernong1992; 07-20-2009 at 09:01 PM.
Reason: Updated
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01-24-2008, 05:44 PM
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#2 (permalink)
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Retired. Join Date: Dec 2005 Location: Los Angeles, California Posts: 8,090
| Re: Speedstep and Cool and Quiet Technology Explained
There you go.
__________________ 
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Quote:
Originally Posted by Norcent  I need to stop using the internet. | | 
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01-24-2008, 06:08 PM
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#3 (permalink)
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Join Date: Dec 2006 Posts: 19,809
| Re: Speedstep and Cool and Quiet Technology Explained
wow I wasn't expecting this to become a Sticky
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01-24-2008, 06:21 PM
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#4 (permalink)
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Not Worth The Explanation Join Date: Aug 2005 Location: Mount Prospect, IL Posts: 8,878
| Re: Speedstep and Cool and Quiet Technology Explained
You want me to unsticky it for you??
It can be arranged...  | |
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01-24-2008, 08:58 PM
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#5 (permalink)
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Super Techie Join Date: Sep 2007 Posts: 429
| Re: Speedstep and Cool and Quiet Technology Explained
I have had a couple people tell me that having speedstep and C1E enabled while your system is overclocked can make your system unstable. Is there any truth to this?
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01-24-2008, 09:07 PM
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#6 (permalink)
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Not Worth The Explanation Join Date: Aug 2005 Location: Mount Prospect, IL Posts: 8,878
| Re: Speedstep and Cool and Quiet Technology Explained
Quote:
Originally Posted by Prophet I have had a couple people tell me that having speedstep and C1E enabled while your system is overclocked can make your system unstable. Is there any truth to this? | Yes, but it does not hold true for everyone, just for most people. You will have to try it on your own setup to see for yourself. | |
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01-25-2008, 09:34 PM
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#7 (permalink)
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Master Techie Join Date: Feb 2007 Location: Australia Posts: 2,834
| Re: Speedstep and Cool and Quiet Technology Explained
lol, i didnt have these disabled in my bios when i first started overclocking and didn't seem to make much difference for me. But later on i disabled them for the sake of it.
__________________ <<<Please give me Rep  if I have helped you <<< | |
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01-25-2008, 09:54 PM
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#8 (permalink)
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Not Worth The Explanation Join Date: Aug 2005 Location: Mount Prospect, IL Posts: 8,878
| Re: Speedstep and Cool and Quiet Technology Explained
Baron, post your setup in the intel overclocking thread, that also goes for anyone else that has yet to.
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01-28-2008, 10:02 PM
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#9 (permalink)
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Monster Techie Join Date: Feb 2006 Location: United States, Arkansas Posts: 1,832
| Re: Speedstep and Cool and Quiet Technology Explained
Cool thanks.. wasn't sure exactly what they were.
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01-29-2008, 09:13 AM
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#10 (permalink)
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Join Date: Jun 2003 Location: Melbourne, Australia Posts: 13,714
| Re: Speedstep and Cool and Quiet Technology Explained
disabling Cool'n'Quiet also ensures that the TLB bug in B2 Phenom processors will not rear it's ugly head up. even with virtualisation, and 100% load.
No need for a BIOS fix, which will cripple performance.
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