58 Solving ProblemsVideo and Monitor ProblemsCAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the ProductInformation Guide.NOTICE: If your computer came with a PCI graphics card installed, removal of the card is not necessary wheninstalling additional graphics cards; however, the card is required for troubleshooting purposes. If you remove thecard, store it in a safe and secure location.The screen is blankNOTE: For troubleshooting procedures, see the monitor’s documentation.The screen is difficult to readCH E C K T H E M O N I T O R C A B L E C O N N E C T I O N —• Ensure that the monitor cable is connected to the correct graphics card (for dual graphics cardconfigurations).• If you are using the optional DVI-to-VGA adapter, ensure that the adapter is correctly attached to thegraphics card and monitor.• Ensure that the monitor cable is connected as shown on the setup diagram for your computer.• Remove any video extension cables and connect the monitor directly to the computer.• Swap the computer and monitor power cables to determine if the monitor’s power cable is defective.• Check the connectors for bent or broken pins (it is normal for monitor cable connectors to have missingpins.)CH E C K T H E M O N I T O R P O W E R L I G H T —• If the power light is lit or blinking, the monitor has power.• If the power light is off, firmly press the button to ensure that the monitor is turned on.• If the power light is blinking, press a key on the keyboard or move the mouse to resume normaloperation.TE S T T H E E L E C T R I C A L O U T L E T — Ensure that the electrical outlet is working by testing it with anotherdevice, such as a lamp.CH E C K T H E D I A G N O S T I C L I G H T S — See "Diagnostic Lights" on page 61.CH E C K T H E M O N I T O R S E T T I N G S — See the monitor documentation for instructions on adjusting thecontrast and brightness, demagnetizing (degaussing) the monitor, and running the monitor self-test.book.book Page 58 Thursday, July 20, 2006 11:10 AM
