Argh... I've tried 3 different brands (mixing ofcourse ), but the only time I've gotten any of them to work together is on an intel platform (i875). Now I've got 1 x OZC 3200 (2x512) Platinum Ed. Rev 2. 1xCorsair Twinx1024 3200LL and 1 x OCZ 4000 (2x512) Platinum EL .. Neither 2 of those will work i my Asus A8V Deluxe (K8T800 PRO), any single pair of modules will work just fine. And ofcourse best performance is gained by using ht e Palt.Ed. Rev 2 modules from OCZ. But, what I'm in need of is getting more than 1GB of memory and my question is if I have to get another OCZ Plat Rev 2 pair or can I use one of the other two. And finally I'm having difficulties understanding the memory settings.... any clues?