Re: 4GB RAM

[Andreas Wohlfeld <agw@supersonic.ruhr.de>]

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.

-- 
"Well, I just... I thought... well, I just thought you'd be teaching me
more, that's all." "I'm teaching you things all the time," said Lu-Tze.
"You might not be learning them, of course." 
                                   - Terry Pratchett in "Thief of Time"