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 ActionPOST Watchdog Triggered 1. Reconfigure the POST watchdog timer to be a higher value(consistent with the time it takes to complete POST). See theRemote Supervisor Adapter II SlimLine and Remote SupervisorAdapter II User’s Guide for information.2. Disable the POST watchdog. See the Remote SupervisorAdapter II SlimLine and Remote Supervisor Adapter II User’sGuide for information.Power Good Fault detected by memory card%d. 1. Reseat the memory cards.2. Reseat the DIMMs.3. Reseat the microprocessor tray.4. (Trained service technician only) Replace the power backplane.5. (Trained service technician only) Replace the microprocessortray.Power Supply %d Temperature Warning 1. Make sure the room temperature is within the recommendedrange (see “Environment” at “Features and specifications” onpage 3).2. Replace the power supply.Power supply current exceeded max spec value 1. Install another power supply (if possible) and make sure thatthe ac power cords are correctly connected.2. Remove devices that consume an extraordinary amount ofpower.3. (Trained service technician only) Replace the power backplane.Power Supply X 12V Over Current Fault 1. Reseat the following components:a. Power supplyb. Power backplane2. Replace the following components one at a time, in the ordershown, restarting the server each time:a. Power supplyb. (Trained service technician only) Power backplanePower Supply X 12V Over Voltage Fault 1. Reseat the following components:a. Power supplyb. Power backplane2. Replace the following components one at a time, in the ordershown, restarting the server each time:a. Power supplyb. (Trained service technician only) Power backplaneChapter 2. Diagnostics 87
