I have a Gigabyte Socket AM3 880GA UD3H. Recently, after ruling out hard drives, (one SSD other spinner), fans, including cpu fan, I have a whining noise sort of high pitch that is constant when the computer is running going on. Turned off speakers and still have it. The only fan I could not check was the PSU fan. So, I'm wondering if this is a mobo problem? Any thoughts or suggestions would be appreciated. Thanks in advance.