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On Tue, Feb 10, 2004 at 09:16:25AM +0100, Andreas Wohlfeld wrote:
> On Tue, Feb 10, 2004 at 09:03:30AM +0100, Lionel Elie Mamane wrote:
> > NForce3 150 Pro chipset) with 4GB of memory installed: The BIOS (and
> > thus Linux) recognises only between about 2.5GB and 3.5GB of RAM,
> > 
> > Does anyone have any sort of clue what is happening here?
> > 
> You have to read the mainboard manual. It states that this is normal
> behavior due to memory space allocation of chips on the mainboard and
> graphics card.
> 4 GB minus 0.4 GB for mainboard chipset minus AGP apterture size sounds
> about right.
> It's a limitation of the 32 bit architecture. It does not happen with
> server mainboards in 40 bit flat or 36 bit PSE mode.

Is there a way to go into that mode with any board, eg 64bit native
Debian? Or does it require bios support?


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