The same here , My Aca 500 on my 500+ Ks 2.0 dont boot the aca menu' some time i have a guru , without the CF installed i have purple screen and after black screen.
With CF installed i can run games and workbench from FFD , i had been run sysinfo and the ACA cpu is running 68000 14mhz little faster than an a 1200.
I can use only the ks 2.0 from the machine and not the 3.1 on the aca.
I have a cabletronic psu it is working great i had been clear the traces on my a 500 expansion and have the same result.
