32 bit systems can only address up to 4GB of RAM as far as I know. Now if you have a video card with 512MB RAM, you can address 4GB-0.5GB=3.5GB system memory, because video memory is addressed first. So in your case, having 640MB or 1280MB (I don't know which versions you have in SLI) video ram, causes your system memory being reduced to 3456MB or 2816MB with the four 1GB module under Vista32.
post #3861 of 5659
12/17/07 at 3:04pm