Video and Monitor Problems
safety instructions shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at
card is not necessary when installing additional graphics cards; however, the card
is required for troubleshooting purposes. If you remove the card, store it in a safe
and secure location. For information about your graphics card, go to
The Screen is Blank
For troubleshooting procedures, see the monitor's documentation.
The Screen is Difficult to Read
H 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 card configurations).
• If you are using the optional
correctly attached to the graphics card and monitor.
• Ensure that the monitor cable is connected as shown on the setup diagram for your
• 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 missing pins).
H 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
• If the power light is blinking, press a key on the keyboard or move the mouse to
resume normal operation.
E S T T H E E L E C T R I C A L O U T L E T
testing it with another device, such as a lamp.
Before you begin any of the procedures in this section, follow the
If your computer came with a PCI graphics card installed, removal of the
— Ensure that the electrical outlet is working by
adapter, ensure that the adapter is