CPU Speed Changing? Speedstep and Cool and Quiet Technology Explained

vernong1992 · 01-24-2008, 09:37 PM

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 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

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)

peterhuang913 · 01-24-2008, 09:44 PM

There you go.

vernong1992 · 01-24-2008, 10:08 PM

wow I wasn't expecting this to become a Sticky

Ste · 01-24-2008, 10:21 PM

You want me to unsticky it for you??
It can be arranged...

Prophet · 01-25-2008, 12:58 AM

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?

Ste · 01-25-2008, 01:07 AM

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.

Amd gt player · 01-25-2008, 02:25 AM

i never though id see the day where ste would double post.

Ste · 01-25-2008, 02:39 AM

Oh I do it lots, now that I can get away with it.

nOcLuE98 · 01-25-2008, 02:42 AM

wow, if that isnt abuse of power.

Ste · 01-25-2008, 02:50 AM

Oh kiddies you'll understand some day... Or not..
<<

Your gonna see alot more emotions in my posts now!!

01-24-2008, 09:37 PM	#1 (permalink)
vernong1992 Bringer of Bans to Spam Join Date: Dec 2006 Posts: 13,658	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 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 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) __________________ AMD Athlon64 X2 4600+ Biostar TA780g 80gb Western Digital Caviar Integrated HD3200 750mhz Core, around 8500gt performance 2gb DDR2 1066, Cas 5, 5-5-5-15 Logitech USB Headset I'm sorry but I do not accept support requests via IM, email, or personal messages Last edited by vernong1992; 06-25-2008 at 12:32 AM. Reason: Updated

01-24-2008, 10:08 PM	#3 (permalink)
vernong1992 Bringer of Bans to Spam Join Date: Dec 2006 Posts: 13,658	Re: Speedstep and Cool and Quiet Technology Explained wow I wasn't expecting this to become a Sticky __________________ AMD Athlon64 X2 4600+ Biostar TA780g 80gb Western Digital Caviar Integrated HD3200 750mhz Core, around 8500gt performance 2gb DDR2 1066, Cas 5, 5-5-5-15 Logitech USB Headset I'm sorry but I do not accept support requests via IM, email, or personal messages

01-24-2008, 10:21 PM	#4 (permalink)
Ste The Executioner Join Date: Aug 2005 Location: Mount Prospect, IL Posts: 8,205	Re: Speedstep and Cool and Quiet Technology Explained You want me to unsticky it for you?? It can be arranged... __________________ Read The Rules!! Power Supply Guide Intel Overclocking Thread AMD Overclocking Thread Other Important Threads I'm sorry but I do not accept support requests via IM, email, or personal messages There will come a day, such a day when all will be told more than they wish to know, what one hears may explain the past, it may explain the future, but it has never made a difference either way and it will change nothing. Some day.... But that is not this day, and I don't know when, I just don't know.

01-25-2008, 12:58 AM	#5 (permalink)
Prophet Super Techie Join Date: Sep 2007 Posts: 430	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? __________________ Sig by Nosboost300

01-25-2008, 02:25 AM	#7 (permalink)
Amd gt player typo user... Join Date: Jul 2006 Posts: 3,124	Re: Speedstep and Cool and Quiet Technology Explained i never though id see the day where ste would double post. __________________ cpu-q6600 not yet over clocked hoping for 3.8 lapped-750i gpu g92 8800gts-ram 2x1 gb crucial balistix ddr830 4.4.3.8 timming-psu 600w silverstone strider-160gb caviar drive+ 160gb wd mybook external-lg dvd rw x3-nzxt apollo-tuniq tower not yet benched. 92% of teens have moved on to rap. If you are part of the 8% who still listen to real music, copy this. the tech forum awards http://www.tech-forums.net/pc/f6/fir...awards-176506/ [/i]Its worse than just forgetting your pants its more like painting your wang with blood an attaching a link of sausages to it an shouting dinner time fido. as said by saxon

01-25-2008, 02:39 AM	#8 (permalink)
Ste The Executioner Join Date: Aug 2005 Location: Mount Prospect, IL Posts: 8,205	Re: Speedstep and Cool and Quiet Technology Explained Oh I do it lots, now that I can get away with it. __________________ Read The Rules!! Power Supply Guide Intel Overclocking Thread AMD Overclocking Thread Other Important Threads I'm sorry but I do not accept support requests via IM, email, or personal messages There will come a day, such a day when all will be told more than they wish to know, what one hears may explain the past, it may explain the future, but it has never made a difference either way and it will change nothing. Some day.... But that is not this day, and I don't know when, I just don't know.

01-25-2008, 02:42 AM	#9 (permalink)
nOcLuE98 Biohazardous Join Date: Dec 2007 Posts: 1,579	Re: Speedstep and Cool and Quiet Technology Explained wow, if that isnt abuse of power. __________________ http://www.tech-forums.net/pc/f6/pot...istory-167236/ POST NOW ^ cpu-e8400 @ 4.05(will go higher soon) ram-2gigs ballistix tracers ddr2 900 mobo- Maximus Formula gpu- eVGA 8800GTS 512mb psu- corsair 520 Dell 2407 24in monitor 12715 stock 3dmark06. OC soon

01-25-2008, 02:50 AM	#10 (permalink)
Ste The Executioner Join Date: Aug 2005 Location: Mount Prospect, IL Posts: 8,205	Re: Speedstep and Cool and Quiet Technology Explained Oh kiddies you'll understand some day... Or not.. << Your gonna see alot more emotions in my posts now!! __________________ Read The Rules!! Power Supply Guide Intel Overclocking Thread AMD Overclocking Thread Other Important Threads I'm sorry but I do not accept support requests via IM, email, or personal messages There will come a day, such a day when all will be told more than they wish to know, what one hears may explain the past, it may explain the future, but it has never made a difference either way and it will change nothing. Some day.... But that is not this day, and I don't know when, I just don't know.

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