I have tried different RAM-configurations. The configuration "16 Mb in Bank A and 4 Mb in Bank B" and "4 Mb in Bank A and 16 Mb in Bank B" gives the same problem:

- a black screen (even not a sad-mac-screen)

- a startup-sound, followed by an erron-sound

Without the 1 Mb SIMMs, the 4 Mb SIMMs works fine in Bank A, but also in Bank B. Without the 4 Mb SIMMs, the 1 Mb SIMMs works also fine in Bank A or Bank B. But what exactly is the problem, I do not know.

Regards,

Emiel