I definitely used to have 2GB in my D800, and it was recognized.

It sounds like you have two 512MB sticks as well, have you tried putting
the 1GB and 512MB sticks in at the same time but in the other slots to
make sure that both slots can see the 1GB stick even if the machine
itself is still only seeing 1.5GB when their both in?

Does anyone know of anything fancy you need to do other than that?

You might try booting one of the modern distribution's bootable cd/dvd's
to eliminate any kernel issues - a Fedora Core 7 or recent Ubuntu disk
should have the most modern kernel available with support for large
memory and you could find that your kernel just doesn't support more
than 1.5GB of ram

-Mike

walter meier wrote:
>
>
> hi!
>
> I tried to upgrade my d800 from 1G to 2G but it fails.
>
> at least one slot seems to have a 512MB-DIMM in it.
>
> I tried both 1G-DIMMs in the other slot, both are okay.
>
> does anyone here has an old d800 with 2GB or knows, if and how it can
> get working?
>
> last BIOS (A13) is loaded...
>
> thanks in advance.
>
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