IBM 8872 Service Guide - Page 95
System-error
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UPC - 000435813060
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Page 95 highlights
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 8872 and Type 8874," on page 93 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. System-error log message Action 1.5V Power Good Fault 1. Reseat the I/O board 2. Reseat the microprocessor tray. 3. (Trained service technician only) Replace the PCI-X board. 1.8V Calgary 1 HSSIB Power Good Fault 1. Reseat the I/O board. 2. Reseat the microprocessor tray. 3. (Trained service technician only) Replace the PCI-X board. 1.8V Calgary 2 HSSIB Power Good Fault 1. Reseat the I/O board. 2. Reseat the microprocessor tray. 3. (Trained service technician only) Replace the PCI-X board. 1.8V Fault 1. If the light path diagnostics VRM LED is lit, replace the failing VRM 3 or 4. 2. Reseat the following components: a. Microprocessor tray b. Power supply c. Power backplane 3. Replace the components listed in step 2 one at a time, in the order shown, restarting the server each time. 2.5V Calgary HSSIB Power Good Fault 1. Reseat the I/O board. 2. Reseat the microprocessor tray. 3. (Trained service technician only) Replace the PCI-X board. 2.5V Calgary PLL Power Good Fault 1. Reseat the I/O board. 2. Reseat the microprocessor tray. 3. (Trained service technician only) Replace the PCI-X board. 3.3V Power Good Fault 1. Reseat the Remote Supervisor Adapter II SlimLine, if present. 2. Reseat the I/O board. 3. (Trained service technician only) Replace the PCI-X board. 5V Aux Power Good Fault 1. Reseat the I/O board. 2. (Trained service technician only) Disconnect the cable that connects the operator information panel to the I/O board. 3. Replace the I/O board. 4. (Trained service technician only) Replace the PCI-X board. 5V Power Good Fault Disconnect the monitor and all USB devices from the server; then: 1. Reseat the I/O board. 2. Reseat the microprocessor tray. 3. (Trained service technician only) Replace the PCI-X board. 12V A Bus Fault 1. Reseat the microprocessor tray. 2. Replace the PCI-X board. 3. Replace the power backplane Chapter 2. Diagnostics 79
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