Troubleshooting Checklist

Before turning on the system, make sure that:The power cord is connected to the AC power-in connector and an AC outlet.The AC outlet is supplying power.If a power strip is used, it is turned on, and the circuit breaker is set.

The voltage selection switch on the system power supply reflects the proper voltage.

Verifying the Configuration

If your system is not operating correctly, the BIOS may contain an invalid configuration parameter. Enter the BIOS program and check your configuration settings, see “BIOS Setup” on page 79 for complete instructions.

Troubleshooting Guidelines

As you troubleshoot your system, keep the following guidelines in mind:Never remove the system cover while the system is turned on.

Do not attempt to open the monitor; it is extremely dangerous. Even if the monitor’s power is disconnected, stored energy within the monitor’s components can offer a painful or harmful experience.

If a peripheral such as the keyboard, mouse, drive, or printer does not appear to work, verify that all connections are secure.

If an error message displays on the screen, write it down, word for word. You may be asked about it when calling Technical Support.

Only qualified personnel should open the system for maintenance.

If you feel you are qualified to maintain the system yourself, make certain you are properly grounded before opening the system chassis. See Chapter 1, “System Access”, for more information on preventing electrostatic damage to the system.

158 Maintaining and Troubleshooting the Gateway ALR 9200 Server