80TroubleshootingIMPORTANT:The barcode stuck on the router chassis contains production and servicing information. Before youreturn a faulty router for serving, provide the barcode information of the router to H3C Support.MPU failuresRUN LED is offSymptomThe RUN LED of the MPU is off. For more information about the RUN LED, see "Appendix C LEDs."SolutionTo resolve the problem:1. Verify that the MPU is installed in a right slot.{ An RPE-X1/RPE-X3 MPU must be installed in slot 4 or slot 5.{ An RSE-X1 MPU must be installed in slot 5 or slot 6.{ An MCP-X1/X2 must be installed in slot 5 or slot 6.2. Verify that the router is powered on correctly. A green POWER LED indicates that the router ispowered on correctly.3. If the problem persists, contact H3C Support.RUN LED fast flashesSymptomFive minutes after the router is powered on or the MPU is inserted in the router, if the RUN LED of theMPU still fast flashes at 8 Hz.To troubleshoot the MPU failure:1. Verify that the terminal display is correct.2. Verify that the software image file properties are correct in the BootWare menu.3. If the problem persists, contact H3C Support.ALM LED is steady on or flashesSymptomThe ALM LED of the MPU is steady on or flashes.SolutionTo resolve the problem:1. View the output on the serial terminal and the software management tool. For example:{ The system displays the following information when it is in high temperature:%Jun 25 14:38:45:444 2010 H3C DRVMSG/3/TempCritical:CPU temperature critical in Slot 3, index is 1.
