Hello Nils I am impressed by H8 microcomputer being used for Thinkpad560x. H8/3437 microcomputer contains program(firmware). You will assume that the new H8/3437 microcomputer acquisition. The microcomputer will not operate, though you succeed in exchange of a microcomputer. Although it thinks that IBM has firmware, I think that acquisition is difficult. I advise that it takes out to IBM repair center. >ということだと思いますが、皆さんいかがでしょう? __________________________________________ 曽田あつひろ asoda@xxxxxxxxxxxxx