3Push the tray assembly toward the chassis until the three tabs at the top of the tray assembly are seated in the corresponding slots on the chassis.

Tab slots

Tabs

4Push the handle in and slide the tray assembly downward until it locks the tray in place.

5Turn the chassis around and press down on the top edge of the system board to make sure that it is firmly seated in the riser card slot.

6Replace or reconnect the peripheral devices to the rear-panel I/O connectors.

7Replace the left and right panels. (See “Replacing the side panels” on page 23 for instructions.)

8Reconnect the power cord and all other cords you removed, then turn on the system.

58Replacing and Adding System Components