I've just installed another stick of Kingston 512 PC2700 DDR RAM in my computer. I already had a stick 512 PC2700 in there, but only 512 is recognized in BIOS, and in my computer properties. The only thing is that in the program I have CPU-Z, under memory it says under in general that it is 512, but there's an option to select DIMM 1, and DIMM 2 there, and it lists my Kingston 512, and my other 512 under DIMM 1, and DIMM 2. My computer also does seem a little faster, but it doesn't recognize in BIOS or My Computer. Any suggestions?