￿ Are the keyboard and mouse for the NEC Express5800 server?
If any keyboard or mouse not approved by NEC is used, the server switch unit does not operate normally. Use the keyboard and mouse exclusively used for the NEC Express5800 server.
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Check that the cable connector is not defective and any connector pin is neither bent nor dirt. If the cable is defective, contact your service representative to request the replacement of the cable with new one.
Check the cable connection referring to Chapter 1.
￿ Is the interface cable connected correctly?

TROUBLESHOOTING

If the server switch unit does not operate as required, check the unit based on the check list described below before asking it for repair. If you find the item meeting the symptom in the list, follow the check and processing described in the item.

If you cannot fine the proper item or any action cannot improve the malfunction, contact your service representative.

The Power lamp blinks.

￿Is the AC cord connected correctly?

Check that the AC cord is connected to the server switch unit and an AC outlet (or UPS) securely.

Check that the coating of the AC cord is not broken and the plug is not bent.

Check that the breaker of the AC outlet to which the AC cord is set to ON.

If the AC cord is connected to the UPS, check that the power of the UPS is set to ON and the power is supplied from the UPS. Refer to the manual attached to the UPS for details.

The keyboard and/or mouse operate incorrectly or do not operate.

￿Are the keyboard and mouse connected correctly to the keyboard and mouse connectors on the server, respectively?

Check that the keyboard and mouse are connected to the proper connectors on the server.

￿Is the hot key mode released (the Server Selection lamp blinks)?

If not, press the Enter or Esc key to release the hot key mode.

￿The keyboard and mouse for the server are set up correctly?

Check the server is set up correctly. Refer to the User's Guide attached to the server for details.

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NEC N8191-09 manual Troubleshooting, Power lamp blinks, Keyboard and/or mouse operate incorrectly or do not operate