68Chapter 52.Use three screws to secure system cover to the chassis.Reinstalling the Hard Disk1.Align the rivets on the left rail of the carrier with the holes on the hard disk. .Screw (Quantity)ColorTorquePart No.M3-0.5*4 NI (3)Chrome5.1 to 6.9 kgf-cm86.1A524.4R0