Finally just upgrade to A64 3000 939, i go the cheap way. Got Biostar NF4ST-A9 board nForce 4 and have AGP and PCIe slot in board the AGP8X port called **P on that product. Install Rad9600XT AGP8X and when turn on the power, i heard long beep and double short beep and no display...just blank screen. I try AGP4X card and its works perfectly, no strange beep out. I read manual and the beep sign is : No video card detected or bad video memory. I install again Rad9600XT AGP, its same...beeping and wont display anything. I try install this Rad9600XT to ECS N2U400A board on nForce 2 chipset and its works succesfully. I install again on my board and no success. Help me finding way to use my Rad9600XT. Or i must buy PCIe card ? i have no money. Second. I bought 939 CPU because i want run dual channel but at boot screen what i read is : Single Channel DDR 400. What can i do to change that to : Dual Channel DDR 400. I have 2 piece DDR PC3200 exactly same. And bank position is right i follow the manual. What is setting i have to be done to have dual channel mamory works. Please help. i am very-very novice.