281d0a435194c4af Could you describe the loud sound in more detail? For example, is it a beep (or several), or something like a fan catching, or some other mechanical-type of sound? If it's a beep, can you tell whether it's coming from Windows or the computer itself? You could mute the sound in Windows to try to figure it out.
Your dxdiag doesn't show any obvious reason for this, but it wouldn't list a mechanical issue or really anything that Windows isn't mediating. So it's important to narrow things down a bit.
Please also let me know whether your fans are running louder than you're used to, or the laptop feels hotter than you'd expect, or both.
