Added two piece of 2GB RAM but total showing 3279 in Ubuntu 8.04

[Andrew Kane]

On Sat, Dec 19, 2009 at 5:22 AM, Ashish Vijaywargiya
<vijaywargiya.ashish at gmail.com> wrote:
> I have added two piece of 2GB RAM in my mother board.
> When I am typing "free -mt" command on terminal then it is showing 3279.
>
> Here is output:
>
>              total       used       free     shared    buffers     cached
> Mem:          3279        618       2660          0         14        278
> -/+ buffers/cache:        325       2953
> Swap:         5898          0       5898
> Total:        9178        618       8559
>
> IMO the total of two RAM will be 4096.
> In BIOS settings it shows two RAM connected to two slots each having size of
> 2048MB.
>
> Is the calculation in Ubuntu 8.04 done differently?
>
> Any comment on this would be greatly appreciated.
>
> --
> Ashish
>
>
>
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>

     As others have mentioned in this thread, you won't get the
benefit of all 4GB unless you use a 64-bit kernel or PAE. If you post
the output of uname -a we will see what kernel version you have.
     Some hardware (for example, my ASUS A8N-SLI board) refuses to
recognize more than 4GB of RAM due either to arcane hardware issues,
to screwed-up legacy BIOS, or to other foolishness. I am looking into
workarounds for these things, especially as they relate to the A8N
boards, and will report back if I ever get it solved.
Here is my forum post on the subject:
http://ubuntuforums.org/showthread.php?t=1359361

     Most likely this is unrelated to your problem, but I mention it
for the sake of completeness (and as a Cry For Help...)
     If you are, in fact, using a 64-bit kernel it may become relevant.