Re: [Xen-users] Xen-Kernel detects just 3.2GB Ram on a 64Bit Deb

To:	"Stephan Seitz" <s.seitz@xxxxxxxxxxxx>
Subject:	Re: [Xen-users] Xen-Kernel detects just 3.2GB Ram on a 64Bit Debian
From:	"Peter Peltonen" <peter.peltonen@xxxxxxxxx>
Date:	Thu, 2 Aug 2007 20:16:35 +0300
Cc:	xen-users@xxxxxxxxxxxxxxxxxxx, Roman Konz <drummermonkey@xxxxxxxxx>
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Hi Stephen,

On 8/2/07, Stephan Seitz <s.seitz@xxxxxxxxxxxx> wrote:
> We had similar problems with recent Supermicro Boards after installing
> huge amounts of RAM.
> The problems disappeared on all machines after we made BIOS updates.
> Only issue was to find the right BIOS image, since Supermicro offered
> a bunch of images labelled with the same version but with different
> release dates.

We have the reason here as I also have a Supermicro board.

My motherboard is Supermicro H8SMA-2 A64/Opteron with MD Athlon 64 X2
5200+ processor with 2 x 1GB ECC DDR-II SDRAM and 2x 2GB ECC DDR-II SDRAM.

I just installed 64bit CentOS and it did not make any change: the
system still sees only 3.2GB of RAM when booting with xen enabled
kernel (with normal kernel all 6GB is recognized).

Supermicro offers just one BIOS update to download for this board:
Revision: R 1.0a. I find this a bit odd, as when I enter the BIOS I
see:

AMIBIOS Version 08.00.14
               ID 1SMI2010

I wonder if I should try the update or not?

Peter

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Re: [Xen-users] Xen-Kernel detects just 3.2GB Ram on a 64Bit Debian