The computer can't see the speakers

I found my old motherboard, installed it in the computer. The computer began to display three microphones of some kind, although no one is connected(and one seems to be working, shows the sound scale, but the sound appears only when I insert the speaker plug into the connector, no longer appears, there is still one microphone not active and one virtual cable). When connecting speakers, headphones, etc., the computer does not see them at all and says that the input audio devices are not found. I assume that I could not connect something on the motherboard, but everything seems to be connected normally. As I understand it, there is only one cable with sound. Maybe someone had a similar experience? How can I solve this problem?