Serial-device problemsThis topic provides suggested actions to take to solve problems with serial devices.About this taskv Follow the suggested actions in the order in which they are listed in the Action column until the problem issolved.v See Chapter 4, “Parts listing, Types 7145, 7146, 7143, and 7191,” on page 81 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.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 (see “Removing an adapter” on page 110 and“Replacing an adapter” on page 111).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 LEDs,connectors, and jumpers” on page 22).2. Reseat the following components:a. Failing serial deviceb. Serial cablec. I/O-board assembly (see “Removing the I/O-board shuttle” on page 143and “Replacing the I/O-board shuttle” on page 144)3. Replace the components listed in step 2, one at a time, in the order shown,restarting the server each time.ServerGuide problemsThis topic provides possible solutions to problems with the ServerGuide program.About this taskv Follow the suggested actions in the order in which they are listed in the Action column until the problem issolved.v See Chapter 4, “Parts listing, Types 7145, 7146, 7143, and 7191,” on page 81 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.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.2. If the startup (boot) sequence settings have been changed, make sure that theCD or DVD drive is first in the startup sequence.3. If more than one CD or DVD drive is installed, make sure that only one driveis set as the primary drive. Start the CD from the primary drive.Chapter 3. Diagnostics 55
