216 Solving Problems
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Video and Monitor Problems
Fill out the Diagnostics Checklist as you complete these checks.
If the screen is blank
NOTE: See the monitor documentation for troubleshooting procedures.
RESEAT THE MEMORY MODULES —
1 Turn off the computer and devices, disconnect them from electrical outlets,
wait 10 to 20 seconds, and then open the computer cover.
2 Remove and replace the memory module(s).
3 Close the computer cover, reconnect the computer and devices to electrical
outlets, and turn them on.
4 If the RAM count displayed does not correctly match the actual amount of
memory installed in the computer, see "Contacting Dell".
CHECK THE MONITOR POWER LIGHT — If the power light is off, firmly
press the button to ensure that the monitor is turned on. If the power light is lit
or blinking, the monitor has power. If the power light is blinking, press a key on
the keyboard or move the mouse.
CHECK THE MONITOR CABLE CONNECTION — Check the connector for
bent or broken pins. (It is normal for monitor cable connectors to have missing
pins.)
TEST THE ELECTRICAL OUTLET — Ensure that the electrical outlet is
working by testing it with another device, such as a lamp.
SWAP THE POWER CABLES — Swap the computer and monitor power
cables to determine if the power cable is defective.
TEST THE VIDEO EXTENSION CABLE (IF USED)—If you are using a
video extension cable and removing the cable solves the problem, the cable is
defective.
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