Serial-device problemsv Follow the suggested actions in the order in which they are listed in the Action column until the problem issolved.v See Chapter 5, “Parts listing, System x3750 M4 Types 8722 and 8733,” on page 195 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 and none of theserial 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 “System-board internalconnectors” on page 26 and “System-board external connectors” on page 27).2. Reseat the following components:a. Failing serial deviceb. Serial cable3. Replace the components listed in step 2 one at a time, in the order shown,restarting the server each time.4. Replace the adapter (if one is installed).5. (Trained service technician only) Replace the system board.ServerGuide problemsv Follow the suggested actions in the order in which they are listed in the Action column until the problem issolved.v See Chapter 5, “Parts listing, System x3750 M4 Types 8722 and 8733,” on page 195 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 ServerGuide Setup andInstallation CD will not start.1. Make sure that the server supports the ServerGuide program and has astartable (bootable) CD or DVD drive. See the readme file that is part of theISO image at http://www-947.ibm.com/systems/support/supportsite.wss/docdisplay?brandind=5000008&lndocid=TOOL-CENTER.2. Make sure that you burned the CD or DVD from an image (do not burn theCD or DVD ISO file as a data disk)3. Make sure that you burn the CD or DVD as disk at once (not track at once).4. If the startup (boot) sequence settings have been changed, make sure that theCD or DVD drive is first in the startup sequence.The MegaRAID StorageManager program cannot viewall installed drives, or theoperating system cannot beinstalled.1. Make sure that the hard disk drive is connected correctly.2. Make sure that the SAS/SATA hard disk drive cables are securely connected.3. Follow the steps in “newly installed hard disk drive” on page 176Chapter 4. Troubleshooting 185
