First-Hand Experience
I just finished a first-hand experience with Thermalright concerning their AX-478, and can tell you they no longer have this cooler available as part of their line. I had a brand new AX-478 about a month ago which I installed on an Abit BH-7 with a 2.4b, on the second or third day of using it I discovered that the fin assemble and attached fan had separated from the baseplate and was laying on my VIDEO CARD! Long story short, there was no major damage to anything other than the AX-478, I emailed Thermalright inquiring as to whether they had knowledge of this problem with other customers. Within just a couple of hours they had responded with a genuinely concerned reply. They acknowledged having received just a couple similar reports over the life of the AX-478 where the soldering between the fin assembly and the baseplate had failed, they also informed me that the AX-478 was no longer in their product line. They then proceeded to offer me a SLK-800U free of charge in replacement for the defective AX-478. No shipping charges, no nothing from me other than an address to sent it to, and didn't even require the return of the defective AX-478, or proof of purchase or anything. And within a week Mr. UPSman brought me a brand new SLK-800U just as promised.
Thermalright is top-notch in my book. They never tried to lay blame on me just went out of the way to make things right, and that deserves respect.
SkyHook