Time for another new work PC. I have a minibox PSU and 12V 180W laptop supply, so I decided to try out Cool n Quiet. My local vendor had a Gigabyte GA-K8NS at $25 more than the cheapest board, but it said this on their website, so I figured it was worth it for the noise reduction:
This platform certified by AMD for supporting its Cool'n'Quiet feature on the Athlon64. With dynamic CPU voltage control, this platform dramatically reduces processor power consumption without degrading system performance. As well, throttling of the system fans allow for a cooler and quieter PC, resulting in decreased noise level for a more comfortable work or educational environment. Please update the latest processor driver and motherboard BIOS before enabling the Cool'n'Quiet function.
I was planning on buying a Sempron 2600, but a little research revealed that the 3100 was the only Sempron supporting Cool n Quiet. So I spent an extra $75 on the CPU to get quiet.
Boy was I SCREWED. The CPU does support CnQ, as does the motherboard. HOWEVER, the advertised fan throttling is NOT a feature of this board! The more expensive K8NS PRO does support it. If I had known, I would have just bought the PRO. So I emailed Gigabyte, and they told me to downgrade the BIOS as the F12 revision had a bug. So I downgraded. Nothing. Replied again telling them how pissed off I am. Got this:
Thank you for supporting GIGABYTE products and contacting GBT Tech Support. As to the problem you mentioned, after the further exam, we are sorry to tell you that due to the hardware specification, GA-K8NS does not support CPU Smart Fan function. Therefore, the CPU FAN speed will not be adjusted. Sorry for the inconvenience that has encountered.
So they have advertised it can throttle the fan, agreed that it SHOULD throttle the fan, and then when they realised it doesn't, just shafted me. Great. I spent $100 extra to get the fan throttling and I didn't get it.