Re: Use 3GB or 4GB RAM in 32 bit OS?

Rat River Cemetary wrote:
> Maybe I got the exact figure wrong then but I thought I used to have 
> 3.25GB when using a 256mb video card. Doesn't matter, 3GB of usable ram 
> is still better than 2GB and I do have some games that use up a lot of 
> ram. I should switch to Vista 64bit but I still prefer XP for gameing 
> with so only use Vista on another PC for internet stuff and digital 
> imaging etc. That computer only has 2GB of ram anyway.

I doubt the whole 640MB of video memory is fully mapped to the system 
memory. My guess is that they probably just map perhaps 128M at a time, 
and slide through the video memory 128MB at a time.

As for my system, I use a 64-bit Ubuntu Linux on another partition. 
Ubuntu sees only 3.9GB of my 4.0GB, but that's because I got an 
integrated graphics, and 128MB of it is shared with the video. If I had 
a discrete graphics, then I could turn off my integrated graphics, and 
the whole 4.0GB would be used by the system.

	Yousuf Khan