Installing the controller module

After all of the components have been moved from the impaired controller module to the replacement controller module, you must install the replacement controller module into the chassis, and then boot it to Maintenance mode.

1. If you have not already done so, install the air duct.
   
   
   
2. Close the controller module cover and tighten the thumbscrew.
   
   
   

   	Controller module cover
   	Thumbscrew

3. Align the end of the controller module with the opening in the chassis, and then gently push the controller module halfway into the system.
   Note: Do not completely insert the controller module in the chassis until instructed to do so.
4. Cable the management and console ports only, so that you can access the system to perform the tasks in the following sections.
   Note: You will connect the rest of the cables to the controller module later in this procedure.
5. Insert the controller module into the chassis:
   1. Ensure the latching mechanism arms are locked in the fully extended position.
   2. Using both hands, align and gently slide the controller module into the latching mechanism arms until it stops.
   3. Place your index fingers through the finger holes from the inside of the latching mechanism.
   4. Press your thumbs down on the orange tabs on top of the latching mechanism and gently push the controller module over the stop.
   5. Release your thumbs from the top of the latching mechanisms and continue pushing until the latching mechanisms snap into place.
      The controller module begins to boot as soon as it is fully seated in the chassis. Be prepared to interrupt the boot process.
   The controller module should be fully inserted and flush with the edges of the chassis.