The A3000 usually comes with 1 meg of chip and 1 meg
of fast ram. These are all 'Dip' chips. The 1 meg of Dips
in the fast ram sockets can be moved over to the chip ram
side for 2 megs chip ram. Then you can install Zips in
the Zip sockets for up to 16 megs ram.
IIRC you can only have 1 meg of fast ram if you use Dips.
