This is probably coil whine. So anyways, I just finished building my pc and i booted up my pc. I immediately hear a really high pitch sound. I do not know where its coming from. I am not sure if this helps, but I have my gpu fans off by default so i am guessing the sound is not coming from there. Also when I restart my computer, my cpu heatsink fans does not spin during that second when rebooting but I still hear that sound which is why i am also assuming the sound is not from my cpu cooler. Anyone got any ideas to help me to get rid of this really high pitch sound?