First test was with Elder Scrollers by Booze Design. It used to crash reliably on this machine. Especially in this first part. I guess it uses VSP…?

@root42 Looks like a pass through between two chip socket?

@s1r83r the original chips are 64k x 4 bit. This uses an SRAM 8 bits wide. So it has to go in both sockets.

@root42 is there a chip under the pcb?

@s1r83r yes. SMD SRAM.

@root42 oh ok cool, the chip must me tiny.

another one:
https://www.lemon64.com/forum/viewtopic.php?t=69583

@root42 neat!

@s1r83r similar to that, yes!

Second demo is Matrix 2. this also
Used to crash a lot during these two parts. Has massive amounts of scrolling, so I guess this might indeed have been the issue for the crashes.