I cant believe people are voting for the nforce4 chipset, outright its pretty awfull, runs hot even with active cooling, and i heard of quite a few bugs with them, even though i have never experianced any myself, well had a few crashed due to heat
Never used a 440BX, chipset so got no idea how that one went, same as nforce 2, but that was for athlons Xp's, and i hate athlon xp's so even if its good i would never touch it.
The 865PE chipset was great on asus boards since u could make it work like a 875 chipset easily plus it was not running close to melting temps like the nforce4 is.
Lol i'm using nforce 4 chipset and i'm dissing it lol