CPU/Mobo Cool N' Quiet Better Enabled or Disabled ??

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woozydevotee

woozydevotee

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I have just enabed the cool n quite in the bios but i have read that it slows down the cpus performance to be "cool n quiet"
is that true? cuz i just upgraded to 3500+ i just use it for gaming and running other normal applications
am i better off disabling it?
Please advice
thanks
 
what cool n quiet actually does is change clock frequencies on the fly as per ur cpu load so it in a way helps decreasing power consumption so no sooner u load a game(or any cpu hogging app) the clock reverts back to the original frequency.mostly ppl who overclock disable cool n quiet and amd processors consume less power anyway so u can keep cool n quiet disabled if u face system instabilities...i read at xbitlabs that amd 3500+ (venice probably)consumes 10 watt under idle and 40 under 100% load.(with cnq disabled)
 
^^But why not keep it enabled i mean? Most people use the computer for surfing, playing music, etc and during this cpu usage is minimal. So throttling down core voltage amd clocks will be beneficial wont it? Plus less heat and less power consumption. And when u start a cpu intensive task it will automatically revert back to full speed. I dont see any drawbacks to enabling it. But are there any other issues?
 
^ Yep, CNQ drops temps by atleast 5-8 'C, but there are issues - one i can vouch for is - on my board with CNQ enabled i used to get stuttering/skipping of sound on regular intervals.

It was a hardware issue. And i tried all the solutions under the sun to solve it. Finally, i solved it by disabling CNQ.

So unless you are using lappy's - my advise Disable CNQ.
 
CnQ isnt a bad thing.

If you you your PC, for only Surfing, Playing Music/ Movies.
Then have it Enabled.

If you play games and all. And Overclock. Keep it disabled.
 
^^But why not keep it enabled i mean? Most people use the computer for surfing, playing music, etc and during this cpu usage is minimal. So throttling down core voltage amd clocks will be beneficial wont it? Plus less heat and less power consumption. And when u start a cpu intensive task it will automatically revert back to full speed. I dont see any drawbacks to enabling it. But are there any other issues?
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CNQ screws the cheaper PSU, as constant throttling shorts some of the circuits I have seen atleast 5 cheap VIP and Mercury PSU's going down because of cool n quiet. Sure if you have the fancy PSU's like ANTEC etc no sweat.
 
Eh?

I thought CnQ Plays with your Multiplier.

On my Laptop, during Idle state, the Multiplier jumps down to 4x, and 8x while load :|.
 
Cool n Quiet plays with both your Multiplier and your Vcore. Usually reduces multiplier to 4x or 5x, and Vcore to 1.1v (If i'm not mistaken, earlier 130nm procs had their Vcore reduced to 1.3v or something).
 
dipdude said:
on my board with CNQ enabled i used to get stuttering/skipping of sound on regular intervals.

It was a hardware issue. And i tried all the solutions under the sun to solve it. Finally, i solved it by disabling CNQ.
Click to expand...
One possible reason for your observation is the PSU. Some SMPS designs go into blocked oscillations when subjected to very low loads. It is a form of closed loop instability. These blocked oscillations will be in the audible range.
Could that be it?
 
Emil said:
One possible reason for your observation is the PSU. Some SMPS designs go into blocked oscillations when subjected to very low loads. It is a form of closed loop instability. These blocked oscillations will be in the audible range.

Could that be it?
Click to expand...

Your observation of blocked oscillations in the audible range if accurate is very interesting indeed.

But, my obsevation(hearing) was pointing me to the sound waves emanating from my JBL pro Speakers - and specifically when i had a song or movie playing(sound source).

Not sure if the blocked oscillations of my PSU were causing the sound distortions in my speakers.
 
dipdude said:
Your observation of blocked oscillations in the audible range if accurate is very interesting indeed.

But, my obsevation(hearing) was pointing me to the sound waves emanating from my JBL pro Speakers - and specifically when i had a song or movie playing(sound source).

Not sure if the blocked oscillations of my PSU were causing the sound distortions in my speakers.
Click to expand...

I had this issue with CNQ as well. My audio was not skipping, but nevertheless I did hear pops and clicks from the speakers. Disabled CNQ and everything's great. I also noticed my 3DMark03 CPU test score was 10-20 marks lower with CNQ enabled. Strange. :o
 
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