v 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, System x3200 M3 Types 7327 and 7328,” on page 133 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.Symptom ActionThe server unexpectedly shutsdown, and the LEDs on thecontrol-panel assembly are notlit.See “Solving undetermined problems” on page 130.Serial port problemsv 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, System x3200 M3 Types 7327 and 7328,” on page 133 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.Symptom ActionThe number of serial ports thatare identified by the operatingsystem is less than the numberof installed serial ports.1. Make sure that:v Each port is assigned a unique address in the Setup utility program andnone of the serial ports is disabled.v The serial port adapter (if one is present) is seated correctly.2. Reseat the serial port adapter.3. Replace the serial port adapter.A serial device does not work. 1. Make sure that:v The device is compatible with the server.v The serial port is enabled and is assigned a unique address.v The device is connected to the correct connector (see “Internal connectors,LEDs, and switches” on page 16).2. Reseat the following components:a. Failing serial deviceb. Serial cable3. Replace the following components one at a time, in the order shown, restartingthe server each time:a. Failing serial deviceb. Serial cablec. (Trained service technician only) System board66 System x3200 M3 Types 7327 and 7328: Problem Determination and Service Guide
