More than likely, I think the kernel doesn't support 1Gb+ of memory.
Don't know about debian specifically, but distros like mandrake package
separate kernels for higher limits, or you can compile your own kernel
(not for novices).

On Thu, 2004-06-03 at 16:28, elemint@theriver.com wrote:
> So the system does not just detect the new amount of memory?
> 
> I use grub, but I will look for an option like that.
> 
> 
> 
> jim
> 
> 
> > There is an option that needs to be fed to Lilo that shows the amount of
> > RAM
> > that a system has
> >
> > something like
> > append=Mem=1536M
> >
> >> I added some memory to a Dell server running debian and the bios
> >> reported
> >> that it detected more memory during the next bootup but when I did a
> >> free
> >> It does not seem to report more memory, there is a more that normal that
> >> is free but not 512 mb free.
> >>
> >> I went from 1 gig to 1.5 gigs of memory, not sure if Debian sees it this
> >> way.
> >>
> >>
> >>              total       used       free     shared    buffers
> >> cached
> >> Mem:        903688     817132      86556          0     134824
> >> 322400
> >> -/+ buffers/cache:     359908     543780
> >> Swap:      2032212          0    2032212
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Bryce C <Plug@BryceCo.Net>
CoBryce Communications