P5 is running great (not perfect) on my machine. I also installed the patch: Alienware MJ-12 DDR: 431 watt pwr supp. Asus A7M266-D Dual AMD Athlon MP 2000's 1 gig of PC2100 RAM NVidia Geforce 4 TI 4600 w/128 MB Seagate Barracuda 80GB HD SB Audigy Platinum External 40 Gig Maxtor Firewire HD Samsung 16X DVD Plextor Plexwriter 40/12/40 Windows 2000 Service Pack 3