Install the Midplane

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Caution - The midplane weighs 80 pounds and requires two people to move it.

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1. If you haven't already removed the old midplane, see Remove the Midplane.
2. Use an antistatic wrist strap to protect the equipment from ESD damage.
3. Prepare the replacement midplane.
   1. Carefully unpack the replacement midplane.

      You will reuse the packing materials in a later step to send the faulty midplane to an Oracle repair depot.

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      Caution - Do not remove the protective plastic covers from the connectors on the midplane until you are ready to connect a cable connector to a socket.

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   2. Stand the midplane vertically on a static‐safe work space.
   3. Attach the handles to the sides of the midplane.
      1. Insert the keyed pins on the handles into the keyholes on the sides of the midplane.
         
      2. Raise the spring-loaded lock pin, and then align the pin with the corresponding hole in the base of the midplane.
      3. Install the second handle in the same manner.
   4. Extend the two server slides fully.
   5. Use the midplane handles to carry the midplane to the slides.
   6. Tilt the top of the midplane slightly away from server to insert the hooked tabs on the handles into the near ends of the slides, and then lower the midplane so the rear tabs on the handles drop into the slides.
      
   7. Remove the plastic covers from the connectors on the midplane.

      Do not discard the plastic covers. You will return them to Oracle.

4. Attach the replacement midplane to the server:
   1. Push evenly on both handles to slowly slide the midplane into the server.

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      Caution - Because of the weight of the midplane, it is easy to accidentally damage the connectors. Push the midplane slowly until the guide pins and the connectors are engaged.

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   2. Loosely install the captive T20 Torx screws on the front of the midplane.

      One type of midplane has 13 front screws.

      
      

      A second type of midplane has 21 front screws.

      
      
   3. At the rear of the server, install and tighten four T20 Torx screws through the CMU cage to the rear of the midplane.

      Use the torque screwdriver that is included with the replacement midplane. Set the torque screwdriver to 15 in-lb.

      
      
   4. Return to the front of the server and tighten the front midplane screws.
      1. Follow the numbered sequence shown in the illustration to tighten the top row of screws.

         Start in the middle of the top row, and then alternate right and left until all screws are tightened.

         Use the torque screwdriver to tighten the screws to 15 in-lb.

         The 13-screw midplane has nine screws in the top row.

         
         

         The 21-screw midplane has 17 screws in the top row.

         
         
      2. Tighten the remaining four screws in any order.

         Use the torque screwdriver to tighten the screws to 15 in-lb.

   5. Adjust two support brackets inside the cabinet.

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      Note - This step applies only to cabinets with the 21-screw midplane. Cabinets with the 13-screw midplane do not have support brackets.

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      1. Raise the brackets to press against the bottom of the midplane.
      2. Tighten the 10‐mm M6 nuts to approximately 15 in-lb (1.7 Nm).
      
      
   6. Remove the handles from the sides of the midplane.
      1. Raise the spring-loaded lock pin on a handle.
         
      2. Raise the handle slightly to free the keyed pins at the fop from the keyholes on the midplane.
      3. Tilt the handle to remove the hooked tab from the slot in the slide, and then set the handle aside.
      4. Repeat Step i through Step iii to remove the second handle.
   7. Reattach cables to the midplane:
      1. Install the cabled lower bus bar assemblies.

         See Install a Cabled Lower Bus Bar Assembly.

      2. Install the I/O data cables.

         See Install an I/O Data Cable Assembly.

      3. Install the left and right scalability card cage cables on the upper shelf of the midplane.
5. Reattach the connectors and brackets to the sides of the cabinet.

   Tighten the screws to 15 in-lb.

6. Reassemble the server.

   See Reassemble the Server.

Related Information

• Inspect the Replacement Kit

• Prepare to Remove the Midplane

• Remove the Midplane

• Reassemble the Server

• Prepare the Old Midplane for Return