memory reported less than installed

[Neil]

On 8/12/08, David C. Uhrig <david at twintop-tahoe.com> wrote:
> On Mon, Aug 11, 2008 at 2:03 PM, Vincent Trouilliez
> <vincent.trouilliez at modulonet.fr> wrote:
> >> If anybody's got 4GB or more installed, it would be nice to hear what you see.
> >
> > Hi,
> >
> > I have got 4GB.
> > System monitor reports only 3.2GB (using 32 bit kernel
> > to stay out of 64 bit hell on the desktop), but I experimented (only
> > experimented, as it turned out not viable for desktop use sadly) with
> > the 32 bit "server" kernel, and using this one, the system monitor
> > happily reports 4.0GB, spot on ! :-)
> >
> > HTH...
> >
> > --
> > Vince
> >
> > --
> > ubuntu-users mailing list
> > ubuntu-users at lists.ubuntu.com
> > Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-users
> >
>
> Hi all,
>
> I have a similar problem on my laptop -- Dell m1210 running the 64-bit
> version of 8.04. It has 4GB of RAM (2x2GB sticks) but only shows
> 3.2GB. This is, well, quite odd.
>
> -David C. Uhrig
>
That will probably be an entirely different problem:
A 32 bit system would be able to acces more than 3.2GB, if there were
no such things as network cards, graphic cards harddisks and other
things needing adresses. As it is they (luckily) exist, so the system
needs to enable space for it. This is solved by using a so-called PAE
kernel (http://en.wikipedia.org/wiki/Physical_Address_Extension NOTE:
this does not include information about the non-RAM adresses).

I am quite sure Ubuntu can detect wether you need PAE and install accordingly.
Somehow this isn't working. If you would like this solved you should
start a new thread with exact info about what kind of system you have
and wether you installed the memory after installing the OS or the
other way around.

Neil


-- 
There are two kinds of people:
1. People who start their arrays with 1.
1. People who start their arrays with 0.