Hey guys while i was playing games myh computer automatically shut down and made multiple beeps dont remember then when i tried turning it on the monitor was black. The monitor still works just no signal or anything from the monitor as if it my desktop wasnt running. My friends told me it means my video card is going bad but another said my power supply is failing? What do I do to fix this i need my pc for school. Also my heatsink fan is really really loud when my temperature is fine