do I need to do something special to use more than 4 Gigs under Feisty?

[Simón Ruiz]

The way I understand it, 32 bit kernels have 4 GB of addressable
memory, but they need to set aside some of that to be able to use
things like PCI slots and such, so you're not actually going to HAVE 4
Gigs of RAM available.

If you want to use your full 8 Gigs, you'll need to use the 64-bit
kernel. On the server, you're not likely to see any of the downsides
of using 64-bit (like getting Flash and media codecs and such to
work).

OTOH if you already knew that and DID use the 64-bit kernel, I'm flat
out of ideas.

HTH,

Simón

On 5/30/07, john <lists.john at gmail.com> wrote:
> Hi all,
>
> I just installed Edubuntu 7.04 on Server running a dual opteron, dual
> core setup. The mobo is a Tyan S3992G3NR. The kernel is setup as SMP
> and all cores are recognized. My problem is that only 3 Gigs of memory
> is recognized. That seems odd to me, as I would expect problems (if
> they occurred) to start at 4G. Does anyone know if there is something
> special one has to do to enable large memory support for Ubuntu
> Feisty?
>
> The bios and MemTest86 both correctly recognize 8 Gigs.
>
> Any ideas would be appreciated!
>
> Thanks,
>
> John
>
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-- 
-Simón A. Ruiz