i have that Same case Man I hate it It Rattles Like something Crazy I had to Remove my fan IN front of the Computer where the Hard drives go And I wish they made the back a little more wide for wire management. Im Running all Coolermaster R4 In it
Try to put computer in Energy saving mod. Clean Fan out in Computer Over CPU and Hardrive Clean out. Make sure you are using the Factory Cord to Charge you Battery.