Carlo (Mr.T), after reading your post again I see that you are expressing disappointment over not having a stock 128k. What I can say is that 128k logic boards are often sold on EBAY (in the USA at least) so you would have the opportunity of putting the logic board back in the stock condition that way.)[/i]

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That's what i like to do, but I don't know what revision of the logic board belongs

to that mac. It has revision 820-0086-C of the logic board and was manufactured

in the 4th week of 1985, so i think case and logic board do not match.

As my question wasn't quite clear, I try again:

I like to know if one can determine by the label on the back of the macintosh case

or better by the serial number what revision of the logic board has to be in it.

The best would be a table like this:

case label__________Serial Number to Serial Number ______________Logic board rev.

macintosh__________Fxxxxxxxxxxxx to Fxxxxxxxxxxxx__________820-xxxx-x

macintosh 128k______________________________________________________________

macintosh 512k______________________________________________________________