Goal

Solution

Remove an Expander Board

1. Remove any slot 0, slot 1, or filler boards.
2. Simultaneously loosen the captive ejector screws until they are fully disengaged.
3. Remove carrier plate and place it on ESD matt.
   
4. Remove two screws on top expander cover that are not common to the rest of the slotted holes.
5. Remove one flathead screw and remove the cover plate air dam bracket.
6. Loosen the remaining sixteen and remove top, bottom, and center covers.
7. Disconnect the LED ribbon cable.
8. Remove the three hex standoffs
9. Remove the two cross-slotted shoulder screws from the expander.
10. Remove the six panhead screws from the expander.
11. Remove the expander from the carrier plate.
    
12. Review the platform message log to verify SMS has received the message that the component has been removed:
    
    sc% showlogs -F
    

    Jun 16 14:28:05 2003 -sc0: esmd[7167]: [0 4824421445907014 NOTICE Boards.cc 1646] EXB at EXxx removed

Installing an Expander Board

1. Position the exb onto the carrier plate.
2. Install the two cross-slotted shoulder screws to the exb.
3. Secure the exb with the six panhead screws.
4. Install the three threaded hex standoffs.
5. Connect the LED ribbon cable.
6. Install the center cover plate air dam bracket.
7. Install the top and bottom exb covers.
8. Install the two self locking flathead screws.
9. Install the carrier.
• Thoroughly inspect the male and female connectors before inserting.
• Look for damage to plastic housings
• Look for foreign material connectors
• Look for bent or damaged pins or ground shields.
  NEVER:
• Set or bump a connector against another surface.
• Place the weight of a board on its connector.
• Insert or remove carrier plates with any slot 0 and slot 1 boards installed.
• Try to force a connector using an insertion/ejection mechanism if the carrier becomes cocked or jammed.
• Use damaged components.
  
10. When inserting a carrier plate into the card cage:
    
    Caution – Use extreme caution when inserting the board set into the card cage of the system. The top-right leading edge of the board set must be aligned properly in the card guide before insertion into the system. This prevents any component parts from being damaged if hit by the edge of the carrier plate, which can result in catastrophic failures to the system operation.
• Hold the bottom edge of the carrier plate and insert it into the bottom of the card guide, aligning with the top card guide to avoiding any angled insertion of the carrier plate.
• Press the carrier plate inward, with evenly distributed pressure at the center edge, until the captive ejection screws seat against the card cage and the top and bottom alignment tabs on the carrier plate are inserted into the top and bottom alignment slots on the chassis.
• Secure the captive ejector screws into the threaded inserts of the top and bottom of the card cage.
• Firmly press inward at the center edge of the carrier plate to manually seat the carrier plate again.
• Manually secure the captive ejector screws simultaneously until the back of the screws meet the face plate.
• Repeat this process several times until the carrier plate is fully seated and the top and bottom carrier plate ejector bracket alignment tabs (not visible from the front) are evenly set.
• Use two supplied hex socket-fixed torque drivers to secure the carrier plate captive ejector screws. Simultaneously secure the top and bottom captive ejector screws until the connector is fully seated and the ejector brackets are flush with the card cage.
• Torque the carrier plate captive ejector screws until the driver clicks or slips (equal to 18.0 in.-lbs or 2.2 Nm).
11. Verify the LED status.
12. Install boards previously removed.
13. Review the platform message log to verify SMS has received the message that the component has been inserted, by typing:
    

    sc% showlogs -F
    Jun 16 14:30:05 2003 -sc0: esmd[7167]: [0 4824421445907014 NOTICE Boards.cc 1646] EXB at EXxx inserted
    

14. If previous expander was blacklisted make sure it is enabled using enablecomponent command. See the man page for enablecomponent for more information.
15. Power on the expander by typing:
    
    sc% poweron EXx

Verifying an Expander Board

1. Using dynamic reconfiguration, configure the boards occupying the expander into the domain(s) by typing:
   
   sc% addboard -d domain_id SBx or IOx
   
   
   
2. Examine the POST messages reported by the addboard/setkeyswitch for any errors. Also monitor the platform and domain message logs on the SC.
   

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