Lenovo 102912U Installation And User Manual

Contents

• See the parts listing in the Hardware Maintenance Manual to determine which components are customerreplaceable units (CRUs) and which components are field replaceable units (FRUs).• If an action step is preceded by “(Trained service technician only),” that step must be performed only bya trained 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:• Each port is assigned a unique address in the Setup Utility program andnone of the serial ports is disabled.• 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:• The device is compatible with the server.• The serial port is enabled and is assigned a unique address.• The device is connected to the correct connector.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 boardSoftware problems• Follow the suggested actions in the order in which they are listed in the Action column until the problem issolved.• See the parts listing in the Hardware Maintenance Manual to determine which components are customerreplaceable units (CRUs) and which components are field replaceable units (FRUs).• If an action step is preceded by “(Trained service technician only),” that step must be performed only bya trained service technician.Symptom ActionYou suspect a softwareproblem.1. To determine whether the problem is caused by the software, make sure that:• The server has the minimum memory that is needed to use the software. Formemory requirements, see the information that comes with the software.If you have just installed an adapter or memory, the server might have amemory-address conflict.• The software is designed to operate on the server.• Other software works on the server.• The software works on another server.2. If you receive any error messages while you use the software, see theinformation that comes with the software for a description of the messages andsuggested solutions to the problem.3. Contact the software vendor.Chapter 7. Troubleshooting 119