Note: See “System replaceable units” on page 144 to determine which components should be replaced by a fieldservice technician.Symptom FRU/actionThe screen is blank. 1. Verify that:v The server power cord is connected to the server and a working electricaloutlet.v The monitor cables are connected properly.v The monitor is turned on and the brightness and contrast controls areadjusted correctly.v If the servers are C2T chained together, verify that:– The C2T chain cables are securely connected to the servers.– The C2T breakout cable is connected properly.– A server that is turned on is selected.Important: In some memory configurations, the 3-3-3 beep code might soundduring POST followed by a blank display screen. If this occurs and the BootFail Count feature in the Start Options of the Configuration/Setup Utilityprogram is set to Enabled (its default setting), you must restart the server threetimes to force the system BIOS to reset the CMOS values to the defaultconfiguration (memory connector or bank of connectors enabled).If you have installed a Remote Supervisor Adapter II SlimLine in the server,make sure that the video cable is connected to the Remote Supervisor AdapterII SlimLine.2. Verify that the memory is installed (see “Installing memory modules” on page33) and configured (see “Starting the Configuration/Setup Utility program” onpage 9) correctly.3. Make sure that damaged BIOS code is not affecting the video; see “Recoveringthe BIOS code” on page 97.4. If you have verified these items and the screen remains blank, replace:a. Monitorb. Video adapter, if installedc. System boardOnly the cursor appears. v See “Undetermined problems” on page 140The monitor works when youturn on the server but goesblank when you start someapplication programs.1. Verify that:v The application program is not setting a display mode higher than thecapability of the monitor.v The primary monitor cable is connected to the C2T device breakout cable.v You installed the necessary device drivers for the applications.2. If you have verified these items and the screen remains blank, replace themonitor.Chapter 6. Symptom-to-FRU index 127
