2.1Chassis cover
2.1.1Removing the front cover
1.Use a Phillips screwdriver to remove the screw on each front end of the top cover.
2.Firmly hold the tray level and pull all the drive trays out of the bay.
3.Then push the front cover as arrow show.
4.Pull up the front cover, then disconnect all the cables in the front cover.
Finally leave the cover as side.
2.1.2Removing the rear cover
Thumbscrews
1. Loosen the two thumbscrews on the rear panel to release the top cover from the chassis. 
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