IBM XT 5160 Keyboard issues

Josh Dersch derschjo at
Sat Dec 17 23:33:46 CST 2016

On 12/17/16 9:14 PM, Devin wrote:

> I was happy to find a IBM XT for a good price at the scrapyard today 
> in very nice condition. It is missing the hard drive, but i have 
> plenty of those, the controller was still inside.
> I had a little issue getting video working at first, i do not have a 9 
> pin cga monitor laying around, thankfully i found a 16 bit isa card 
> that also works in an 8 bit slot.
> The machine starts up and runs its memory test, however it gives a 301 
> error. System halts and says press f1 to continue, but no luck, 
> keyboard is unresponsive. I have tried about 10 different keyboards on 
> the machine, including some model M keyboards with a ps2 adapter with 
> no luck.

Model M keyboards are AT-style keyboards, they won't work with an XT 
(different protocol).  You will need to find a PC/XT compatible keyboard 
to use.

- Josh

> A quick search does turn up that 301 is a keyboard related error, but 
> i am not sure what exactly the issue is.
> Am i doing something stupid here or am i looking at the possibility of 
> something being wrong with the machine?
> --Devin

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