I am running Windows 7 Ultimate 32 bit. I have an Intel Core 2 Duo E8400 processor, an Asus P5N-EM-HDMI Motherboard with an EVGA Nvidia 9800 GT GPU. I have always had 2 GB of RAM. I just purchased another 1 GB DIMM and put it in the 1 empty slot on the MB. Booted up windows clicked on my computer then went to system properties and it says 3GB installed 2.00GB usable. How do I make all 3GB usable? Any help would be much grateful! Also I have tried the msconfig thing and that did not work.