Quote Originally Posted by Andy
WB: The White Water is a nice block, however the WW was designed to cool the athlon XP core and the IHS on the P4 may hamper the cooling ability of the WB. With that said, I can't really recommend you a WB for a P4 as i only really concentrated on finding what was best for my athlon
It was designed for the Athlon XP, but the cooling area on it covers the primary area of highest heat on the heatspreader on the P4, and I found it to do just fine on mine.