v Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See Chapter 3, “Parts listing, Type 8863, 7362,” on page 107 to determine which components are customerreplaceable units (CRU) and which components are field replaceable units (FRU).v If an action step is preceded by “(Trained service technician only)”, that step must be performed only by atrained service technician.Lit light pathdiagnostics LED withthe system-error orsystem-informationLED also lit Description ActionFAN A fan has failed or has beenremoved.Note: A failing fan can also causethe TEMP LED to be lit.1. Reinstall the removed fan.2. If an individual fan LED is lit, replace the fan.3. Reseat the microprocessor tray.4. (Trained service technician only) Replace themicroprocessor tray.PCI BRD The PCI-X board has failed. 1. (Trained service technician only) Reseat the PCI-Xboard assembly.2. (Trained service technician only) Replace thePCI-X board assembly.CPU BRD The microprocessor tray has failed. 1. Reseat the microprocessor tray.2. (Trained service technician only) Replace themicroprocessor tray.I/O BRD The I/O board has failed. 1. Reseat the I/O board.2. Replace the I/O board.Remind buttonYou can use the remind button to put the system-error LED on the operatorinformation panel into Remind mode. When you press the remind button, youacknowledge the error but indicate that you will not take immediate action. Thesystem-error LED flashes while it is in Remind mode.The system-error LED stays in Remind mode until one of the following conditionsoccurs:v All known errors are corrected.v The server is restarted.v A new error occurs (the LED is lit again).Power-supply LEDsThe following table describes the power-supply LEDs and suggested actions tocorrect the detected problems.The following minimum configuration is required for the power-supply dc good LEDto be lit:v Power supplyv Power backplanev Power cordv Microprocessor trayThe following minimum configuration is required for the server to turn on:Chapter 2. Diagnostics 67
