It's a beautiful looking keyboard for sure, probably the best looking one in my collection. that and the white alps are pretty much the reason why I bought it lol, I ended up buying it marked as untested
I am attempting to use this keyboard on my Windows 10 laptop and my Windows 10 gaming desktop. I have a (working) AT -> PS/2 converter, along with a working PS/2 -> USB converter. The gaming desktop has a PS/2 port on the back (which works) that I use for some of my older keyboards. I first tested it directly only with the AT -> PS/2 converter, with the PS/2 port being plugged in my desktop, as the PS/2 -> USB converter can be finnicky sometimes. There is a "Power" light on the keyboard that shows that it is receiving power, however not a single keypress will register. Tried it with the PS/2 -> USB converter next on both my desktop and my laptop, both had the same result --- the "Power" light lights up, however, not a single keypress will register.
There is a switch on the back of the keyboard for AT and XT modes, I have tried both and neither will work.
I have also heard that even with a working converter that it's not 100% bulletproof to work with all AT keyboards, and that some AT keyboards simply won't work in newer operating systems. Could that be the case here?
Haven't had the time to take it apart yet, but I did take off a couple of switches and it's pretty clean on the inside