4 GiB RAM Blues

Jonathan Hudson jh+ubuntu at daria.co.uk
Sun May 9 18:00:29 UTC 2010


On Sun, 9 May 2010 20:35:51 +0300, Amichai Rotman wrote:


>64Bit: Same test gave my ~3200 Kb total memory...
>
>I don't get it.... How can the 64Bit show less?
>

For 64 bit OS:

It's a BIOS setting, something to do with "memory remapping" or
"memory holes", to do woth how the BIOS maps system or video ROMs or
memory into the address space for 32bit OS (the BIOS cannot know what
you're going to boot). Have a hunt around the BIOS setup, it's a pretty
common problem and the solution is BIOS dependent.

-jh






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