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Can the kernel be forced to detect memory not seen by the BIOS?



Hello everybody,

I just got my hands on a new 512 MiB SD-RAM stick for my old PIII box.  
Unfortunately the BIOS sees only 256 MiB and so does the kernel. Is 
there a way to get the kernel to detect all memory?

In case you are wondering:

- chipset of the motherboard is Intel i440BX

- the only BIOS upgrade available for the board does not load (tried 
  that in order to get it to detect HDDs > 32 GiB)

- mem=512M does not work

- SD-RAM is really scarce here, it will be difficult to find two 256 MiB 
  sticks to exchange (though currently this seems to be the only 
  solution)

The machine is currently running a 2.6.22 (lenny) kernel loaded from a 
custom Debian live CD (no HDD). I could create a new CD based on sid if 
there is any chance to get it working.

Regards,
Andrei
-- 
If you can't explain it simply, you don't understand it well enough.
(Albert Einstein)

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