so i just bought a used GPU, asap i installed it to my PC, then i pushed the power button, at a second the monitor showed "No signal detected" , but then after few seconds the monitor eventually got the signal. i just wonder whats happening during the "no signal detected " , is it the system try to install the driver for my gpu? so i logged in to my computer which is running windows 10, and mysteriously the driver for the RX 570 is already installed. I opened up Devices manager it says my gpu is working fine. i never installed the driver for the rx 570 before, but how its already installed. i then restarted the system and its working fine, theres no more "no signal detected" and its been a week, so far so good. can somebody explain this to me? i am quite noob about computer.