Sorry it was late for my beeing:
I ment to say
every where you see that people offering memory upgrades for
the iMacand the maximum you can extend is.
1024 in the user accesable slot
and
1024 in the servise accesable slot
Has this to do that the processor don't support bigger memory
because there is also bigger memory like 2048
So it would recognice the memory over 1024 when you plug a
bigger memory in?
Hope this is more clear