Enbar said:However this memory is mapped into ring 0 at boot time and can not be used for other purposes once it's mapped.
This is the first time I've heard that claim, and frankly I find it a little hard to believe. I have half a gig and AGP aperture set to 256. On my old box, I had 224MB RAM and AGP set to 32 (the highest it would go), and the difference in available RAM on the two boxes is *huge*, much more than the relatively paltry 64MB you are suggesting. Especially since I sometimes run a MIDI soundfont gobbling 54MB; that would reduce the difference to almost nothing, and yet this box swaps much less when playing games than my old one did.
Strange, isn't it?