The following table describes the possible system-error log messages andsuggested actions to correct the detected problems.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, System x3800 Type 8866,” on page 107 to determine which components arecustomer 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 atrained service technician.System-error log message Action1.5V PLL Power Good Fault 1. Reseat the I/O board.2. Reseat the microprocessor tray.3. (Trained service technician only) Replace the PCI board.1.5V Power Good Fault 1. Reseat the I/O board2. Reseat the microprocessor tray.3. (Trained service technician only) Replace the PCI board.1.8V 1 HSSIB Power Good Fault 1. Reseat the I/O board.2. Reseat the microprocessor tray.3. (Trained service technician only) Replace the PCI board.1.8V 2 HSSIB Power Good Fault 1. Reseat the I/O board.2. Reseat the microprocessor tray.3. (Trained service technician only) Replace the PCI board.1.8V Fault 1. If the light path diagnostics VRM LED is lit, replace the failingVRM 3 or 4.2. Reseat the following components:a. Microprocessor trayb. Power supplyc. Power backplane3. Replace the following components one at a time, in the ordershown, restarting the server each time:a. (Trained service technician only) Microprocessor trayb. Power supplyc. (Trained service technician only) Power backplane2.5V HSSIB Power Good Fault 1. Reseat the I/O board.2. Reseat the microprocessor tray.3. (Trained service technician only) Replace the PCI board.2.5V PLL Power Good Fault 1. Reseat the I/O board.2. Reseat the microprocessor tray.3. (Trained service technician only) Replace the PCI board.3.3V Power Good Fault 1. Reseat the Remote Supervisor Adapter II SlimLine, if one ispresent.2. Reseat the I/O board.3. (Trained service technician only) Replace the PCI board.80 IBM System x3800 Type 8866: Problem Determination and Service Guide
