@MOS8_030 did you try messing with the jumpers on this board at all? Thanks to Bolle’s tip above I’m now running mine with 4x4MB SIMMs. I can’t seem to get it to recognize 16MB, but if I move the jumper labeled “0/1/4M” down one position from where it’s shown in your photo (so, jumping the 2nd and 3rd pins counting from the “4M” side), I see 4MB total memory (I presume on my motherboard)
and the Railgun extension boots with a 6.7MB RAM disk (the RailgunCdev shows “on board: 1024k, logic board: 4096k, protected: 7104k”). This is without running Compact Virtual. I’m not sure why it’s 7MB instead of 8MB, or if there’s any way to get access to all 16MB ...
Also — I had the same issue as you with CV freezing my mouse (actually, I could move mine vertically and use the button, but not move it horizontally). Weirdly I found I was able to fix that by installing CV and telling it I have a Mercury board instead of a Novy Quick30Plus (mine looks identical to yours so I assume it is indeed a Quick30Plus). Once I did that, I can run CV and the Railgun CDEV/extensions together with no problem. (To be clear, without doing this I couldn’t run CV with
any accelerator extensions, including GemStart ... I don’t think you had this issue with GemStart?) However, CV only seems to let me use 4MB of memory (is it the motherboard or the Novy card?) — i.e. if I set it to 8MB of VM, it uses 4MB on my HD. Also, having told it I’m using a Mercury board to get it working, CV won’t let me create a RAM disk.