IBM 88631SU Service Guide - Page 83
Remind, button, Power-supply
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UPC - 000435913135
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v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See Chapter 3, "Parts listing, Type 8863, 7362," on page 107 to determine which components are customer replaceable 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 a trained service technician. Lit light path diagnostics LED with the system-error or system-information LED also lit Description Action FAN A fan has failed or has been 1. Reinstall the removed fan. removed. Note: A failing fan can also cause 2. If an individual fan LED is lit, replace the fan. the TEMP LED to be lit. 3. Reseat the microprocessor tray. 4. (Trained service technician only) Replace the microprocessor tray. PCI BRD The PCI-X board has failed. 1. (Trained service technician only) Reseat the PCI-X board assembly. 2. (Trained service technician only) Replace the PCI-X board assembly. CPU BRD The microprocessor tray has failed. 1. Reseat the microprocessor tray. 2. (Trained service technician only) Replace the microprocessor tray. I/O BRD The I/O board has failed. 1. Reseat the I/O board. 2. Replace the I/O board. Remind button You can use the remind button to put the system-error LED on the operator information panel into Remind mode. When you press the remind button, you acknowledge the error but indicate that you will not take immediate action. The system-error LED flashes while it is in Remind mode. The system-error LED stays in Remind mode until one of the following conditions occurs: v All known errors are corrected. v The server is restarted. v A new error occurs (the LED is lit again). Power-supply LEDs The following table describes the power-supply LEDs and suggested actions to correct the detected problems. The following minimum configuration is required for the power-supply dc good LED to be lit: v Power supply v Power backplane v Power cord v Microprocessor tray The following minimum configuration is required for the server to turn on: Chapter 2. Diagnostics 67
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