This problem had never been solved yet, so I decided to re-post it.
My computer has a
Mobo : MSI 990FXA-GD80
Proce : Sapphire r9 270x Vapor-X
I am really worried about my computer because each time I restart it, it is creating a noise. Anyway, the noise can ONLY be heard each time I shut down or restart my computer [more like a substitute of the log off sound]. Instead of shut down sound by windows, it creates a sound like a shattered glass or a sound way more similar to a distorted sound effect. I tried everything, but the noise still insist. So I decided to remove realtek because without realtek, its not creating a noise.
Here is a sound about 70% similar (the noise of my computer is heavier and sharper than this). Just imagine this noise playing 4-10 seconds every restart or shutdown. Link: http://www.soundsnap...istort_fx_pl_05
Also, my speaker dont have a problem.