84 Maintaining and Troubleshooting the Gateway ALR 7200 ServerVideo ProblemsThe system is running but there is no display.The text on the display is dim or difficult to read.Probable Cause SolutionThe monitor is notturned on.Make certain the monitor is plugged in andturned on. If power is applied to the monitor,the green power LED should illuminate.The monitor’s datacable is not connected.Make certain the monitor’s data cable isconnected to the video controller on the backof the system.The connector or cableis damaged.Check the connector and cable for bent ordamaged pins.The monitor isdefective.Connect a working monitor to the computer.The monitor’sbrightness and contrastcontrols are turneddown.Adjust the brightness and contrast knobs tothe center position.The video card is notseated correctly.Open the system and reseat the video card.The video card is notcompatible with thesystem.PCI video cards must be compatible with thesystem.Probable Cause SolutionThe monitor’sbrightness and contrastcontrols are turneddown.Adjust the brightness and contrast knobs untilthe text becomes clear.Sunlight is glaring offthe display.Position the monitor away from the sun orwindow.The CRT may be old. Replace the monitor.Note:Your system board mayhave a built-in videoadapter, so there may notbe a video adapter toremove and replace.
