Memory ignored

[Wojciech Puchar]

> Hi all,
> i am maybe new to BSD. I had setup my DELL server 2900 to run freeBSD
> 7.0server but i have seen a message that ignored my 4GB of my memory
> in my
> server. Can somebody tell me what is happening  and give me some idea so
> that i can maximize my memory usage. My total memory is 8GB.
>
use freebsd/amd64 on 64-bit CPU, or use PAE if it's 32-bit CPU.

and read archives - such questions were asked MANY times