Hi,
Thanks for the reply. After looking on aminet I found some memory testers. One called amnesia seemed to work pretty well since it was able to detect a broken simm I installed.
The simm I use normally was good and so was the chipmemory.
(Tip: always keep a broken simm around to test your ram tester :-P )
Anyway the problem seems to have been solved. A memory patch intended fot RTG systems was switched on while I have no RTG. This currupted my chipmem.
So I won't bother you with chip codes.
Thanks for the offer anyway.