[lug] Why doesn't any OS see my memory?

[Nate Duehr]

Michael Hirsch wrote:

> Howdy,
>
> We have a bunch of newish Dell workstations with 4 gig of RAM.  The 
> BIOS sees it all.  But when we boot to Linux or Windows only about 3.5 
> Gig is there.  I mean that the various tools to display the RAM should 
> only 3.5 Gig.  Actually, Windows and Linux show slightly different 
> amounts, but both are significantly below 4 gig.
>
> Is this normal?  Has anyone else seen this?
>
> Thanks,
>
> Michael


On Linux, you can also custom-compile your kernel for large RAM sizes 
such as these.  It's a kernel setting.

Nate