I'm on a roll tonight with posting tonight it appears...
I just bought a Turbo XT motherboard off Ebay and it arrived today. For the time being, I'm just using my XT case until I can get another floppy drive and case- hence my other floppy drive thread that went to hell. The system boots fine- it appears to be from some no-name manufacturer called "EXCEL TURBO Computers http://artofhacking.com/th99/m/U-Z/32845.htm"- unfortunately, it appears that the keyboard controller is either broken, damaged, or just not responding to my IBM PC (5150- not an XT) keyboard.
I saw on Wikipedia that the connections for a PC keyboard and an XT keyboard differ! Since this is a XT-class motherboard, with 8 slots and Turbo (I don't think I've ever attached a keyboard to my XT to check lol), is it possible I need an XT keyboard and not a PC keyboard? If that's not the case, how do you suggest I go about debugging the problem? I don't remember which IC's handle the keyboard on a 5150/5160, but since the controller is on the keyboard itself, I imagine it's a simple shift register on the motherboard itself.
It's also worth mentioning that there's NO 301 error on boot... I can't even verify if the BIOS does a self-test of memory (if it does, it's rather quick compared to an PC, XT, or even AT)!
Picture of the motherboard, for reference:
I just bought a Turbo XT motherboard off Ebay and it arrived today. For the time being, I'm just using my XT case until I can get another floppy drive and case- hence my other floppy drive thread that went to hell. The system boots fine- it appears to be from some no-name manufacturer called "EXCEL TURBO Computers http://artofhacking.com/th99/m/U-Z/32845.htm"- unfortunately, it appears that the keyboard controller is either broken, damaged, or just not responding to my IBM PC (5150- not an XT) keyboard.
I saw on Wikipedia that the connections for a PC keyboard and an XT keyboard differ! Since this is a XT-class motherboard, with 8 slots and Turbo (I don't think I've ever attached a keyboard to my XT to check lol), is it possible I need an XT keyboard and not a PC keyboard? If that's not the case, how do you suggest I go about debugging the problem? I don't remember which IC's handle the keyboard on a 5150/5160, but since the controller is on the keyboard itself, I imagine it's a simple shift register on the motherboard itself.
It's also worth mentioning that there's NO 301 error on boot... I can't even verify if the BIOS does a self-test of memory (if it does, it's rather quick compared to an PC, XT, or even AT)!
Picture of the motherboard, for reference:
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