My computer constantly makes a high-pitched under low stress (such as when I'm browsing the internet) and the noise gets much louder the instant I start up a game. It started doing this immediately after I removed my video card to clean the dust out of it. My computer case's fans aren't doing it, and when I check catalyst control center, my computer's temperature is well under 50°C and my fan speed is only at 20%. It never made this noise until now, and it's causing my ears to ring, and I feel that it's going to damage them. Is there any way to fix this?