my system is p5ql pro asus mobo , logitech keyboard ps2 keyboard (more than 10 years) .
my place use to get some power drip for a second ,at that time , pc shuts and restarts itself , it dint cause any problem till now , once or twice i noticed , i am not sure if it was exactly at power drip time or normal time - both keyboard and ethernet lan stopped working , the keyboard would lose power i mean led lights-num lock caps lock would not stay on , no light at etherbet cable too..then i would restart the pc - then its all good .
few years back ps2 mouse stopped working, but ps2...