hallo, everyone. i hope someone can help me with this. What is ATA 100/133 RAid. I don't understand what is Raid. is it a speical funtion or what. also, what is the difference between single sided memory and double sided memory. Can we combine both type of memory into a motherboard or just only all single side memory module on all slot or we can combine both single sided memory and double sided memory. What is the a memory bandwidth? hehe, is it depends on the motherboard or what please help me. Thanks you!!!!