Random crashing you say? Sounds like poor contact on the socket over the 68000. All pins clean? Loose fit? Weak pin springyness? I've read of microfractures too on the 68000 soldering. Different A600 motherboards (not necessarily same revision) will have a different height of the surface mount chips and slightly different 68000 pin angle/mass. It could be that both of your boards are lower slightly or otherwise presenting less pin to the Apollio socket, making a less secure and less electrically sound connection.
Contacts have all been cleaned on both the motherboard and the card. Socket is a nice tight fit, the pins are not too 'springy' but then they have barely been used. Don't think it would be likely that two motherboards would suffer the same issues with the pins.
As for the soldering on the 68k, had this looked at where I used to work by the R&D techy guys who designed the BMS controllers and all looked good in that aspect.
I have given up on it to be fair, suspect its more likely compatibility with the rev 1.5 boards. Shame I dont have access to a different rev board to test it further. Years back when I looked into getting it going again there were reports with compatibility issues, and now it appears there are still compatibility issues with some cards, bored revisions and different versions of Gayle so seems likely.
Ill stick it on ebay and raise some funds to cover the Furia I have just ordered.
