Michael Lorenz <ml@persius.rz.uni-potsdam.de>  wrote:
 > OK, something went wrong, so I tried the original processor board with the old bootrom without the new oscillator - still dead. what the hell could be happened to my machine ? not even the old configuration works anymore !

hmm... sounds like it's dead, Jim... 

Unless you've bent a pin or more on the daughterboard, or unless you did it 
on the carpet while someone was vacuuming, or any of the countless things
that could just be "wrong"; it should have been a no-brainer...  Or maybe
the daughterboard is misaligned or rotated...

Although, I'll admit that for the life of me, I can't get lager to work
at 33mhz even with a 33mhz 040 and 66mhz oscillator... It just comes up
with all LED's on... It works fine with the 50mhz...  I've taken all the
ram out except for the 2 really fast banks. no change.

But in your case, it should work fine if you set it back to normal...