6 Gateway ALR 8200 User’s GuideStarting up the systemPress the On/Off switch on the front panel to start the system. The greenLED on the front panel lights.If you turn off your system, you must wait at least ten seconds before youturn the system back on.The system self-checks the memory even if the monitor is not connected. Ifthe monitor is connected and on, the screen displays the start-up sequence.• If more than one CPU is installed, the system displays which CPUit is currently testing.• If any errors are encountered, your system displays them on themonitor.• If a monitor is not connected or the system is unable to display anerror, an error beep code sounds.If the system encounters an error, it is most likely a nonfatal one, meaningthe system will function until the error is corrected (usually through theBIOS 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, checkyour Maintaining and Troubleshooting Guide for instructions.Quick checkSometimes, the simplest things can cause trouble. To avoid unnecessaryservice 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 theprocedure(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.Warning!For safety reasons, bothupper and lower bezeldoors must be closed andlocked while the system isrunning.Important!% HIPE] MR ZMHIS QE] FIGEYWIH F] PEVKI QIQSV]GSRJMKYVEXMSR 3RGI XLIFSSXYT WIUYIRGI LEWGSQTPIXIH ]SYV HMWTPE] [MPPVIXYVR