8. System DiagnosticsExpress5800/R120d-1E, R120d-2E Maintenance Guide 51Chapter 1 Maintenance8. System DiagnosticsSystem Diagnostics runs several tests on the server.From the Tool menu of EXPRESSBUILDER, select Test and diagnostics to diagnose the system.8.1 Test ItemsThe following items are tested in System Diagnostics• Memory• CPU cache memory• Hard disk driveImportant Be sure to disconnect the LAN cable before executing System Diagnostics.Executing System Diagnostics with the LAN cable connected may affect thenetwork.Tips On checking hard disk drives, no data is written to the disk.8.2 Startup and Exit of System DiagnosticsStart up System Diagnostics in the following procedure. (If the server is running, follow steps 1 to 4 aftershutting down and the server is ready to be rebooted.)1. Start up EXPRESSBUILDER and select Tool menu.For information on starting up EXPRESSBUILDER, refer to Chapter 2 (5. Details ofEXPRESSBUILDER).Note In case Language selection menu appears, select English.2. From the Tool menu, select Test and diagnostics.From Test and diagnostics, select End-User Mode to start System Diagnostics. This process takesabout three minutes.When the diagnostics is completed, the screen display changes as shown below.
