I have a rev 5 A500 that works great until I plug in the ACA 500. No boot, black screen and no power light on the computer. Cntrl amiga amiga results in the screen flickering and I get a white screen most of the time. An infrequent yellow screen and just once I got a purple screen. Take out the ACA 500 and everything works. I have another A500 MB (rev 5) that I tried with the same results.
Is the Rev 5 MBs incompatible with the ACA 500
By the Way one has V2.05 kickstart and the other has v1.2
I've an A500 Rev5 + ACA500 (Firmware V081). I had some problems to run the card but I adjusted the card by moving it into the slot (Power off). Make some tests with swapping your PSU & try to clean your A500 connector!
