Wifes computer has an A7N8X mobo with 1 stick of 333 ddr ram, 512 mb. I have 2 sticks of 266 ddr ram, 256 mb each. The mobo has 3 memory slots, so the question is this. Would 1 gig of 266 be better than 512 meg of 333? Iknow that having 266 in with 333 would make it all run at 266. Running XP sp2.