Are thee any KS switchers that take 1- and 2-chip ROMs? My Micronik ZorroII board for A500 has room for KS 1.x, 2.x and also 3.0 with 2 chips. I newer tried it as I have ordinary switcher installed with 2.x and 3.1 (1-chip version). I think that Zorro board was made prior to 1-chip KS 3.1 for A500/600/2000 was produced.