Chapter 7 Maintenance and Troubleshooting
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a. Unplug the power cord and wait 30 seconds.
b. Plug in the power cord and turn on the Server.
c. Wait a full 2 minutes.
d. Verify the monitor starts displaying normally.
10. Check the monitor display to see if the system memory count takes place correctly:
a. Turn the Server off and then on.
b. Check to see if the memory is counted during the Server boot.
If no count occurs, go to Step 12.
c. Check to see if the count occurs in the color appropriate for the monitor.
If the count occurs in the wrong color, the problem may be with the embedded video, the monitor, or
the monitor cable. (Continue with the troubleshooting steps.)
11. If you are using a video screen saver utility and the screen goes blank while using the keyboard, you
may be using an application that turns off the screen even when you are using the keyboard.
Refer to the manual provided with the screen saver utility.
12. Ensure the memory modules (DIMMs) are correctly seated in the slots.
You may want to remove and reinstall each memory module to ensure it does not cause the problem.
Also, verify the correct type, size, and combinations of DIMMs for this Server model are installed.
13. To see if the display is functioning:
a. Turn off the monitor and the Server.
b. Disconnect the video cable from the video connector.
c. Turn on the monitor.
Monitor Notes:
Ø When most EGA and VGA monitors are disconnected from the video connector, if the monitor is
working, the screen is white.
Ø When some monitors (such as HP high-resolution monitors) are disconnected from the video
connector, the monitor may be working, although the screen is black.
d. If the display is black or white when it should be in color, check the monitor cable to see if a pin is
bent.
e. If a pin is bent, slowly but carefully straighten the pin.
Replace the cable if the pin cannot be straightened successfully.
f. If a monitor tester is available, use it to check the display.
g. If you suspect the monitor is faulty, replace it with a known good monitor.
h. Verify the new monitor is operating properly and then reinstall the original monitor and duplicate the
error.
14. Verify the monitor is working by plugging it into a known-good Server or computer.
15. Check for bent pins on the monitor’s connector.
If you should find bent pins, slowly but carefully straighten each pin.
16. Connect the monitor cable to the Server video connector and turn on the Server.
If there is a display, but characters are the wrong size or the display is the wrong color:
a. Determine if the monitor is a color or monochrome monitor.
b. Verify the video cable is properly inserted in the connector on the back of the Server.
c. Check for bent pins on the connectors.
