I think I just fried my graphics card by trying to put on a new heatsink. It only booted up once, and for a few seconds before the screen went blank. Now it won’t POST with the card in.
I was having problems with the fan making annoying noises. Over a period of a few months, XFX managed to send me a new heatsink. There were no instructions, so I looked up some guides on YouTube. I think the problem was that the coat of Arctic Silver wasn’t complete when I first booted up. I’ve had bad things happen every time I’ve used Arctic Silver. With it, I’ve gummed up a processor, killed a motherboard and CPU, and now fried a graphics card. Maybe I should get generic thermal paste and just leave Arctic Silver alone.