I have a problem:
Yesterday when I was playing a game on my PC a strange sound started coming form my graphics card. I have never experienced this before.
I have an ATI Radeon HD 5870.
At first I thought it was one of the fans, so I removed the graphics card and cleaned the cooler and the fans as much as possible. I also cleaned the side fan of my chassi. The sound is still there.
I tried controlling the graphics cards fans manually and setting them to 100%. I could hear the fans speed up, but the annoying sound was gone.
Whenever I start a game, movie or other thing that makes my graphics card work the sound returns.
I filmed a video using my cell phone to illustrate the sound: Strange sound - YouTube
Does anyone know what the sound is? Is it possible to fix it?
Can I be certain that the sound is coming from my graphics card?
Thanks in advance.