I'd say if it has all memory IC slots on the digital board filled with 256kbit ICs and doesn't have a memory piggyback board installed, it's an EII+ or memory expanded EII.
The normal original 512K used 64kbit ICs and hence required an additional memory board in order to have twice 256Kbytes = 512K.
The presence of kludge wires and trace cuts on the digital board would also indicate that a memory upgrade has been installed afterwards.
///E-Synthesist
--- In emulatorII-list@yahoogroups.com, "hazchem88" <analoguesolutions@...> wrote:
>
> Mine doesnt boot right yet
>
> It says 'EII' on the front panel not EII+
>
> but the guy I did a trade with was calling it an EII+, so either he is wrong (probably) or it has had a memory upgrade.
>
> It has all the same memory slots filled as my EII+HD (I have 2 EIIs!)
> all filled with 256 memory ICs
>
>
> Would a 512KB EII have lots of empty slots?
>