HP ProLiant DL980 HP ProLiant Servers Troubleshooting Guide - Page 53

System open circuits and short circuits, External device problems

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• Be sure the adapter is seated properly. System open circuits and short circuits Action: CAUTION: Do not operate the server for long periods with the access panel open or removed. Operating the server in this manner results in improper airflow and improper cooling that can lead to thermal damage. 1. Check the server LEDs to see if any statuses indicate the source of the problem. For LED information, refer to the server documentation. 2. Remove all power sources to the server. 3. Be sure no loose connections (on page 18) exist in the area. 4. Be sure each component in the area is working. Refer to the section for each component in this guide. If you cannot determine the problem by checking the specific area, perform each of the following actions. Restart the server after each action to see if the problem has been corrected. • Reseat all I/O expansion boards. • Be sure no loose connections (on page 18) exist in the rest of the server, particularly with the cables that connect to the system board. • Be sure no foreign material exists, such as screws, bits, or slot bracket blanks, that may be short circuiting components. External device problems Video problems Screen is blank for more than 60 seconds after you power up the server Action: 1. Be sure the monitor power cord is plugged into a working grounded (earthed) AC outlet. 2. Power up the monitor and be sure the monitor light is on, indicating that the monitor is receiving power. 3. Be sure the monitor is cabled to the intended server or KVM connection. 4. Be sure no loose connections (on page 18) exist. o For rack-mounted servers, check the cables to the KVM switch and be sure the switch is correctly set for the server. You may need to connect the monitor directly to the server to be sure the KVM switch has not failed. o For tower model servers, check the cable connection from the monitor to the server, and then from the server to the power outlet. 5. Press any key, or type the password, and wait a few moments for the screen to activate to be sure the energy saver feature is not in effect. Hardware problems 53

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Hardware problems 53
•
Be sure the adapter is seated properly.
System open circuits and short circuits
Action
:
CAUTION:
Do not operate the server for long periods with the access panel open or
removed. Operating the server in this manner results in improper airflow and improper
cooling that can lead to thermal damage.
1.
Check the server LEDs to see if any statuses indicate the source of the problem. For LED information,
refer to the server documentation.
2.
Remove all power sources to the server.
3.
Be sure no loose connections (on page
18
) exist in the area.
4.
Be sure each component in the area is working. Refer to the section for each component in this
guide.
If you cannot determine the problem by checking the specific area, perform each of the following actions.
Restart the server after each action to see if the problem has been corrected.
•
Reseat all I/O expansion boards.
•
Be sure no loose connections (on page
18
) exist in the rest of the server, particularly with the cables
that connect to the system board.
•
Be sure no foreign material exists, such as screws, bits, or slot bracket blanks, that may be short
circuiting components.
External device problems
Video problems
Screen is blank for more than 60 seconds after you power up the server
Action
:
1.
Be sure the monitor power cord is plugged into a working grounded (earthed) AC outlet.
2.
Power up the monitor and be sure the monitor light is on, indicating that the monitor is receiving
power.
3.
Be sure the monitor is cabled to the intended server or KVM connection.
4.
Be sure no loose connections (on page
18
) exist.
o
For rack-mounted servers, check the cables to the KVM switch and be sure the switch is correctly
set for the server. You may need to connect the monitor directly to the server to be sure the KVM
switch has not failed.
o
For tower model servers, check the cable connection from the monitor to the server, and then
from the server to the power outlet.
5.
Press any key, or type the password, and wait a few moments for the screen to activate to be sure
the energy saver feature is not in effect.