MMaximus wrote on 2019-09-02, 13:09:

The Athlon 500 CPU came from the Compaq Presario, however since I don't have any other slot A board I won't hang on to it either.

The weird case on top of the desktop Compaq is actually a very odd system - some sort of 1990 terminal designed to send and receive Fax and Telex stuff. Everything is super proprietary, and I have no idea what kind of CPU is even in there. It actually still works - I've advertised it locally but I'm afraid this might end up being recycled as well.

Oh dear. Dont tell me you threw away a perfectly good Slot A machine? HERESY! 😳
Those had Compaq ASPEN mobos, FIC SD11 OEM version, pretty decent stuff:
https://theretroweb.com/motherboards/s/fic-sd11

also theres a decent video on Youtube about the EGT Cirius 3000, uh, thing
msylvain59 - 1990 EGT Cirius 3000 written telecoms device teardown