And of course Soyo did not include the pinouts of either PS2 or USB in the manual. First I would check is for +5v and then GND. Of the the six pins only two left needed are clock and data which if you mess up will not hurt anything but a visual to see where the traces go will help figure which two they are.
This may help OR not(is for a shuttle but a place to start): https://www.betaarchive.com/forum/viewtopic.p … 3bd5e84#p284837
If you do figure it out please post.

Horun wrote on 2023-08-13, 00:40:

And of course Soyo did not include the pinouts of either PS2 or USB in the manual. First I would check is for +5v and then GND. Of the the six pins only two left needed are clock and data which if you mess up will not hurt anything but a visual to see where the traces go will help figure which two they are.
This may help OR not(is for a shuttle but a place to start): https://www.betaarchive.com/forum/viewtopic.p … 3bd5e84#p284837
If you do figure it out please post.

that's the pinout i've used for my adapter, the mouse powers on but windows doesn't report a mouse, so at least 5v and gnd are correct
now i need a way to identify the data and clock signals, sadly i only have a soldering iron, a multimeter and my basic electronic skills

these were the pinouts that worked (in the second image is the right one)

the adapter was wired correctly, the issue was that the data cable was cut, changing it fixed the issue, now the mouse works perfectly
thanks for your help!