I just built my system when I started up the bastard, a minor but very annoying knocking noise occurs. The sound is repetitive and I know it's not a wire hitting a fan. When I turn off the system the noise continues for a few seconds, when the hard drive revs down. I don't know what to do, the drive seems to work fine, although a bit loud at times, when loading programs. I don't want to start loading programs onto the disk and then have it fail. Any suggests to the noise and how to stop it. If worst comes to worst I'll just RMA it back to Newegg.