140 TroubleshootingVideo problemsThe system is running but the screen is blankProbable cause SolutionThe monitor is not turned on Make sure that the monitor is plugged in and turned on.If the monitor is turned on, the green power LED shouldilluminate.The monitor data cable isnot connectedMake sure that the monitor data cable is connected to thevideo controller on the back of the server.The connector or cable isdamagedCheck the connector and cable for bent or damaged pins.The monitor brightness andcontrast controls are turneddownAdjust the brightness and contrast knobs to the centerposition.The monitor is defective Connect a working monitor to the server.The video card is not seatedcorrectlyOpen the server, then make sure the video card is seatedproperly. Some servers do not have a video controllercard because the video controller is built into the systemboard.The video card is notcompatible with the serverCheck the documentation or technical support to makesure that the video card is compatible with the server. Ifnot, obtain a compatible video card. The server boardmay have a built-in video adapter, so there may not bea video adapter to remove and replace.The terminator card or thesecond processor is notseated properlyOpen the server and reseat the terminator card or thesecond processor.