System event messages logThe system event messages log contains messages of three types:InformationInformation messages do not require action; they record significantsystem-level events, such as when the server is started.WarningWarning messages do not require immediate action; they indicate possibleproblems, such as when the recommended maximum ambient temperatureis exceeded.Error Error messages might require action; they indicate system errors, such aswhen a fan is not detected.Each message contains date and time information, and it indicates the source ofthe message (POST or the IMM).Integrated management module error messagesTable 10. Integrated management module error messagesv Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See Chapter 4, “Parts listing, Types 4255, 7945, and 7949 server,” on page 157 to determine whichcomponents 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 atrained service technician.Message Severity Description ActionNumeric sensor Ambient Tempgoing high (upper critical) hasasserted.Error An upper critical sensor goinghigh has asserted.Reduce the ambient temperature.Numeric sensor Ambient Tempgoing high (uppernon-recoverable) has asserted.Error An upper nonrecoverable sensorgoing high has asserted.Reduce the ambient temperature.Numeric sensor Planar 3.3V goinglow (lower critical) has asserted.Error A lower critical sensor going lowhas asserted.(Trained service technician only)Replace the system board.Numeric sensor Planar 3.3V goinghigh (upper critical) has asserted.Error An upper critical sensor goinghigh has asserted.(Trained service technician only)Replace the system board.Numeric sensor Planar 5V goinglow (lower critical) has asserted.Error A lower critical sensor going lowhas asserted.(Trained service technician only)Replace the system board.Numeric sensor Planar 5V goinghigh (upper critical) has asserted.Error An upper critical sensor goinghigh has asserted.(Trained service technician only)Replace the system board.Numeric sensor Planar 12V goinglow (lower critical) has asserted.Error A lower critical sensor going lowhas asserted.Check the OVER SPEC LED andpower-channel (A, B, C, D, E,and AUX) error LEDs on thesystem board. See theinformation about the OVERSPEC LED in “Light pathdiagnostics LEDs” on page 65.114 IBM System x3650 M3 Types 4255, 7945, and 7949: Problem Determination and Service Guide
