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Date: Thu, 27 Sep 2007 21:37:00 +0200 (CEST)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Eric Osterweil <eoster@CS.UCLA.EDU>
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Cc: freebsd-questions@freebsd.org
Subject: Re: Dual Opterons don't see all memory
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> I've recently taken ownership of a server (dual Opterons) in my research 
> group.  Whereas it was previously running linux, it is now running FreeBSD. 
> Everything seems to be going great, except linux was able to make use of it's 
> 6GB of memory, and FreeBSD can only see about 4GB of it.
>
> Can anyone help me figure out how to make use of the missing GB?

use FreeBSD/amd64 not i386.