Video And Monitor Problems; If The Screen Is Blank - Dell Precision Workstation 450 User Manual

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.
216 So l vi n g Pro b l em s
R M
E S E A T T H E E M O R Y
Turn off the computer and devices, disconnect them from electrical outlets,
1
wait 10 to 20 seconds, and then open the computer cover.
Remove and replace the memory module(s).
2
Close the computer cover, reconnect the computer and devices to electrical
3
outlets, and turn them on.
If the RAM count displayed does not correctly match the actual amount of
4
memory installed in the computer, see "Contacting Dell".
C
H E C K T H E M O N I T O R P O W E R L I G H T
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.
C
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
bent or broken pins. (It is normal for monitor cable connectors to have missing
pins.)
T
E S T T H E E L E C T R I C A L O U T L E T
working by testing it with another device, such as a lamp.
S
W A P T H E P O W E R C A B L E S
cables to determine if the power cable is defective.
T
E S T T H E V I D E O E X T E N S I O N C A B L E
video extension cable and removing the cable solves the problem, the cable is
defective.
M —
O D U L E S
— If the power light is off, firmly
— Check the connector for
— Ensure that the electrical outlet is
— Swap the computer and monitor power
(
I F U S E D
) — If you are using a