Gateway 7400 System Manual (PDF Version) - Page 126

Video problems The system is running but the screen is blank. Probable cause Solution The monitor is not turned on Make sure the monitor is plugged in and turned on. If the monitor is turned on, the green power LED should illuminate. The monitor data cable is not connected Make sure the monitor data cable is connected to the video controller on the back of the system. The connector or cable is damaged Check the connector and cable for bent or damaged pins. The monitor is defective Connect a working monitor to the server. The monitor brightness and contrast controls are turned down Adjust the brightness and contrast knobs to the center position. A DIMM is not seated Open the system and reseat the DIMM. properly - indicated by a beep The image on the screen is dim or difficult to read. Probable cause Solution The monitor brightness and contrast controls are turned down Adjust the brightness and contrast knobs until the text becomes clear. Light is glaring off the display Position the monitor away from the sun or other light source. The monitor may be old Replace the monitor. The color monitor displays everything in black and white. Probable cause The system was turned on before the monitor Solution Make sure the monitor is turned on, then restart the system. 118 Troubleshooting