I have two GFX AGP cards, both ATI Radeon 9200 and 9250 with 128MB DDR RAM.

According to the document of the MorphOS 3D release, it says something about "- ATI rv280 (Radeon 9200 and Radeon 9250)".

The only rev. I can see on the boards are this one: "rev 1.02". It's the same with rv280? I don't know. I'm really confused :(

So which from the two GFX cards I have will run the 3D update of MorphOS normally. Or no one of them? :(

rv280 isn't about revision but about card core version . Both cards should work just fine.

I have used a 9250/128MB without any probs. I now have switched to a 8500/128MB as I found it is actually faster.
both cards work fine, just plug them to check!