On Jun 4, 1:06 am, Claud...@aol.com wrote:
> Anyone ever tried to run DOS 7.0 on a computer that has 4GB of RAM? It
> doesn't seem to like it. Specifically, it seems to create a problem
> with XMS.
>
> SMARTDRV won't load, says not enough XMS available, MEM can't tell how
> much XMS is being used, WFWG 3.11 won't start, sound card won't
> initiate, etc. With only 2 GB of RAM, the problems disapear. I haven't
> tried with 3GB yet.
>
> I suspect it has to do with the fact that the graphic card memory
> needs to be mapped within 4GB so if there are already 4GB of physical
> memory installed, it creates a problem. Is that a reasonable
> explanation?

I have successfully run DOS 7.0 with 3328 MB of memory recognized by
HIMEM.SYS.

You are right, the video card memory interferes with the memory above
2 GB, and depending on how much video RAM your card has, it decreases
the available amount of DOS RAM below 4 GB by that corresponding
amount.

Does anyone know of a ramdisk for dos which supports MORE than a 2 GB
as its maximum? With 64K cluster size and FAT16, we should be able to
support up to 4 GB as a DOS ramdrive. Can anyone hack XMSDISK or
SRDISK to support 64k cluster sizes?