I highly recommend the svc gc-68. It was about 15 bucks shipped from case-mod.com I have it on my 1.2 duron. I lapped it, threw some artic alumina on there and my 100% CPU usage load temps are 39 to 41 C. With the volcano 6cu+ that I had before the gc68, I was running at around 46 under full load. the gc68 is quiet and good. I highly recommend it and using good thermal compound. I