Quote Originally Posted by Raxxath View Post
The high pitched noise coming from your PC is most likely your 8800GTX. Many of the 8800 cards make a high pitched sound when in 3d mode, and the pitch and loudness will vary with what's being displayed, and how many frames per second you're getting. The Crysis intro does this to me, and plenty of others partly because how high your fps is during it. You can recreate the noise using rthdribl or ATITool.
Noted, thank you