Cool'N'Quiet

[mdahc]

Setup:
Athlon64 3200+ s939 Winchester core (overclocked to 2.2GHz, HTT=4x220MHz, Cool'N'Quiet enabled)
MSI K8N Neo2 (BIOS v. 1.3)
Thermaltake Silent Boost
1GB OCZ Enhanced Latency DDR466 Rev. 3 (running @ 220MHz & 2.5, 4, 4, 8)
single 36.7GB WD Raptor
ATI Radeon 9700 Pro (Catalyst 4.9)
Sony CPD-E540/B 21" Trinitron
Windows XP Pro SP2

Cool'N'Quiet is supposed to slow down your CPU fan's rotational speed when the chip is underclocked, right (thus the term quiet)? Does this hold true for non-AMD CPU fans (I assume not if the fan doesn't have variable rotational speeds)? Also, should I even bother with Cool'N'Quiet?

Thanks for your time and input.

 

[klah]

Cool'n'Quiet does not control fan speeds in any way. It only adjusts cpu voltage and frequency.

The fan included with the A64 retail package has a thermistor that controls fan speed. If you are using a fan with a fixed speed you can still use a motherboard that reduces fan speed such as Asus boards with 'Q-Fan' or MSI's 'BuzzFree'. This is entirely independent of C'n'Q.

 

[fustercluck]

Just wondering; can you overclock with cool and quiet mode on?

 

[imported_michaelpatrick33]

Yes Cool n Quiet will change the voltage and multiplier regardless or your overclocks so it is actually great for overclocking!

 

[mdahc]

I stand corrected. Thanks for pointing that out to me klah. I knew Cool'N'Quiet adjusted CPU voltage and frequency, but I thought I read that it can also adjust CPU fan rotational speed. Anyway, thanks again for the info.