Warning!

For safety reasons, both upper and lower bezel doors must be closed and locked while the system is running.

Important!

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Starting up the system

Press the On/Off switch on the front panel to start the system. The green LED on the front panel lights.

If you turn off your system, you must wait at least ten seconds before you turn the system back on.

The system self-checks the memory even if the monitor is not connected. If the monitor is connected and on, the screen displays the start-up sequence.

•If more than one CPU is installed, the system displays which CPU it is currently testing.

•If any errors are encountered, your system displays them on the monitor.

•If a monitor is not connected or the system is unable to display an error, an error beep code sounds.

If the system encounters an error, it is most likely a nonfatal one, meaning the system will function until the error is corrected (usually through the BIOS Setup). In the rare case of a fatal error, see “Quick check” on page 6. If the information in this guide does not help you solve the problem, check your Maintaining and Troubleshooting Guide for instructions.

Quick check

Sometimes, the simplest things can cause trouble. To avoid unnecessary service calls, be sure you check over the basics before you call for support. If your system does not operate correctly, re-read the instructions for the procedure(s) you have performed. If an error occurs within an application, consult the documentation supplied with the software.

This section identifies solutions to common problems.

6 Gateway ALR 8200 User’s Guide