I'm looking at getting a new heatsink/fan for my A64 X2 5400. The current one is fine, but I like getting new toys The two I've linked to below are the ones I'm looking at, but the first link below lists the sound level in 'sone' (it's not listed in the specs at Newegg; I got the info off the box). From the little research I've done, one sone is equal to 40 decibels. The fan is rated at 0.8 sone, which equals 32dB and that seems a bit loud, doesn't it? It also says that a stock AMD factory cooler is rated at 2.6sone, which equals 104dB!!! Isn't that a little high?? Like almost too high to be accurate (or believable). The other one is rated at 22.32dB. From my limited knowledge of sound ratings, I think that anything under about 25dB is considered pretty quiet, right? http://www.newegg.com/Product/Product.aspx?Item=N82E16835185125 http://www.newegg.com/Product/Product.aspx?Item=N82E16835103031 Manufacturer's pages: http://www.arctic-cooling.com/cpu2.php?idx=80&disc= http://www.coolermaster.com/products/product.php?language=en&act=detail&tbcate=1&id=2535 Any input is appreciated. Even if you just have a comment about the coolers, or have used one or the other, or whatever. Any input does not necessarily have to be about the sound levels. Thanks.