I plugged in the audio jack to the back of the case and there was a sound ( some kind of static sound that come out from a speaker ) which usually does occur, but this time it's louder than before, then the screen went black for a couple seconds and came back normally, which i haven't had this issue before. I think it's caused by the electricity in the cable going into the motherboard.
Did i just damage the gpu? Is there the way to check it?
Since this is my first PC after many years of gaming laptop, Im kind of nervous now, I don't really know how to deal with the desktop gpu.