the3dgm

Windows XP Professional and thats is what takes up the other .5 gig it is used by the operating system, without a graphics card, just using the built in graphics chip, would remove another .25 to .5 of the available ram. Leaving 3.25 or just 3 gigs left for the programs.

Are you saying MACs don't use any ram or do they have separate ram for the system or does it simply not show how much ram is being used by the system? I has to use something.

Many Windows programs do not show what is being used by the system but XP, and some of my diagnostic programs do show exactly what is using how much.