Hi al!! I know there are other threads with this subject. Here I can choose from this list of cpu coolers. It's for an Athlon XP 2800. Currently useing the stock cooler/fan: - VOLCANO 11 Thermaltake - VOLCANO 6 Thermaltake - TR2-M2 Thermaltake - TR2-M1 Thermaltake - TITAN PIV TTC-W2T S478 Thank you very much!!!