>Why should it be mapped outside ? It is just somewhere you need hands and feet twice to calc the power of two...
>
>LOL
>
>I was referring to reduced RAM availability on some 4Gb machines running an x64 OS because of the need to map video card memory into memory space.

That is on 32Bit system, as the video needs to be adressed there as well, even if the CPU has more adress lines

I'd understood that theoretically under x64 the video card memory can be mapped into some other range, meaning that all your RAM can remain available. Certainly that's how it looks on my machine.

Some machines (read boards) can map the RAM sitting normally where now the video card does its thing to other adresses, making it available as PAE in 32Bit systems from my understanding. And Vista will lie to you depending on what you look at.

regards
thomas