JAG87, you are wrong, XP and VISTA 32 bit can handle up to 4 Gb of Ram, but will never use the 4gb effectively, only up to 3.5Gb will be used depending on your system's hardware.
Yesterday I built a system with a QX6700, a 8800GTX and 4 Gb of Ram...XP 32 bit used effectively 3 Gb of Ram, the...