Excuse me, but is it possible to make an external ram supply? Just out of curiosity.

If this is possible, then would it also be possible to use an external ram source that connected by USB? yes, I realize this would require programming a chip to change the data type to/from USB.

What would be the purpose of that? USB is so slow and defeats the entire purpose of RAM.

well, is there an other medium that could be used, other than usb? Would it be possible to modify a motherboard to have an external RAM storage unit?

There is no sense in trying. External storage on RAM base exists for decades - it's called solid-state-disc and besides special server applications, this technology is now obsolete. Modern solid state FlashROM devices (your USB stick) can be seen as sort of RAM based storage, too.
I understood that you wanted to have mass storage that has the speed of RAM (the only meaningful purpose of external RAM), but this will always be limited by the RAM prizes and the needed high speed interface that can compete with memory placed next to the controller. Or you think of a completely different type of computer, where work memory and mass storage would be the same. Since this would only speed up loading times beyond a reasonable amount, there is not much sense in such a concept. Fire up a RAID 0 with some affordable high end harddisks and load the monstergame of your choice - I guess you won't see much need for something ten times faster but 1000 times more pricy, too.

But I've got an idea: Just remove your case and place the mainboard and all the stuff on your desktop. This way, everything becomes external...:mrgreen: (I know some guys who actually run their rigs this way)

Am I to understand that the feature of xternal RAM provided by Vista is a waste of time? My whole query was based on the assumption that what was provided in Vista was desirable and therefore wanted to know if it would work in XP.