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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: arttu80 on March 04, 2012, 09:56:12 AM
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I have this old kickstart switcher board laying around with ROM1.3 installed, so I installed it in B2000 machine (rev4.4), well it worked fine with Kick Rom1.2 & 1.3, but can't boot ROM 2.04 nor 3.1, so I can't figure out why? If I install these later roms straight on mobo, they work fine.. I know, that some older mobos required jumper wire from pin 1 to 31 on ROM socket, but this isn't the case with given setup. So why this ALCOMP board isn't compatible with later ROMs? Or is it?
It's this board --->
http://bboah.amiga-resistance.info/display_photos/kickum_1_sm.jpg
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Really, no one?
I suspect it's some pinout conflict with newer roms, because it gives me RED screen and blinking power led. Can I use jump wire/cut trace method to make this work or simply swap I/O chip (which is GAL16V8-25LP) to some other version? This would be much easier if I had schematic of this board, but regretfully I don't.
Ok, I know this IS silly little board, with no serious use, but still it would be interesting to make it work...