from the audio sounds like there two issue. one sounds like the hard drive heads are clicking. take power off the drive see if the sound changes. the other sounds like there a fan that rubbing or has a wire in it. check that the power supply fan not crushed into the case of the power supply. if the power supply is out of warranty look to see if the fan for the supply is wired or plugs in. if it a plug in fan you be able to switch it out yourself. if the unit under warranty rma it.