I have a passively cooled Gigabyte HD 4850 card. At one point it was overheating and shutting my pc down due to poor airflow in the case. To test that it was the graphics card, I ran Furmark for 10 mins at watched as the PC shut down when the temp reached 120 degrees C. Fair enough.
However when I ran the Furmark stress test, the card made an buzzing electrical sound which wasn't there before. I have since fixed my airflow problem and the card is fully stable. My problem is that I now get the buzzing electrical sound whenever I run 3D games. This sound wasn't there before I ran Furmark, but is now really obvious and irritating.
Has the Furmark stress test damaged my card in some way? Is there anything I can do to fix it?