2 confirming loading of the operating system, 4 specific problems and corrective actions, 1 power light does not light – Kontron TIGW1U Carrier Grade Server User Manual

Page 79: 2 no characters appear on screen, Confirming loading of the operating system, Specific problems and corrective actions 5.4.1, Power light does not light, No characters appear on screen, Section 5.4.1, Power

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Kontron Carrier Grade Server TIGW1U

December 2009

Product Guide, rev. 1.3

79

Troubleshooting—TIGW1U server

5.3.2

Confirming Loading of the Operating System

Once the system boots up, the operating system prompt appears on the screen. The

prompt varies according to the operating system. If the operating system prompt does

not appear, see

Section 5.4.2

,

“No Characters Appear on Screen”

.

5.4

Specific Problems and Corrective Actions

This section provides possible solutions for specific problems:

Try the solutions below in the order given. If you cannot correct the problem, contact

your service representative or authorized dealer for help. See

Appendix C, “Getting

Help”

for contact details.

5.4.1

Power Light does not Light

Check the following:

 Did you press the power-on button?

 Is the system operating normally? If so, the power LED might be defective or the

cable from the front panel to the server board might be loose.

 Have you securely plugged the server power cord into the power supply?

 Is the power supply correctly set to 110 V or 235 V, depending on your power

output?

 For AC, will other items plugged into the same power outlet function correctly?

 Remove all add-in cards and see if the system boots. If successful, re-insert the

cards one at a time with a reboot between each addition.

 Make sure the memory DIMMs comply with the system requirements.

 Make sure the memory DIMMs have been populated according to the system

requirements.

 Remove the memory DIMMs and re-seat them.

 Make sure the processor jumper is correctly configured.

 Make sure the processor complies with the system requirements.

 Remove the processor and re-seat it.

5.4.2

No Characters Appear on Screen

Check the following:

 Is the keyboard functioning? Test it by turning the “Num Lock” function on and off

to make sure the Num Lock light is functioning.

 Is the video monitor plugged in and turned on? If you are using a switch box, is it

switched to the correct system?

 Are the brightness and contrast controls on the video monitor properly adjusted?

 Is the video monitor signal cable properly installed?

 Does this video monitor work correctly if plugged into a different system?

 Is the onboard video controller enabled in the BIOS?

 Remove all add-in cards and see if the video returns. If successful, re-insert the

cards one at a time with a reboot between each addition.

 Make sure the memory DIMMs comply with the system requirements.

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