Next a computer case “from” Fujitsu from the same seller. I didn’t had luck in the initial testing of the Acer J1. It did initiate some execution of code from the flash, but it halted on the keyboard controller test, that send me to a progressive rabbit hole in the attempt of reviving the motherboard. So, I reached out to the seller and learned that all this hardware belonged to a server/workstation from Fujitsu, the S4066. This was somewhat strange because I was expecting a Acer branded machine, but after seeing the first batch of photos that the seller kindly sent to me, it was obvious that it was in fact a re-branded Acer. In one of those images there was a clue to the problem, the key lock has a unusual combination of settings (on servers is somewhat the norm), so I check the area of the front panel connector (J5) and keybord controller, and found JC4 cut (factory made, like in some commodore MB). Shorting it made the MB boot properly (an halt function of sorts wired to the key switch). All of this made me think that it wound be a shame to not have the proper case of the MB, so I made a offer, and voila, the case with PSU, a 5.25 and a 3.25 floppy drive.
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While all of this was happening, a motherboard for an IBM 5170 popped up for cheep and I could resist. It has some corrosion problems, but I think it can be fixed.
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A week later found a Maxi Studio ISIS complete in box, with all the paperwork and stickers, plus a 32MB simm module for expanding the sound card.
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To be continued ....