Kontron NSW1U IP Network Server - Manual (Page 87)

Kontron IP Network Server NSW1U
December 2009 Product Guide, rev. 1.4
87
Troubleshooting—NSW1U Network Server
5. If you do not receive a beep code and characters do not appear, the video display monitor or
video controller may have failed. Contact your service representative or authorized dealer for
help.
7.4.3 Characters are Distorted or Incorrect
Check the following:
 Are the brightness and contrast controls properly adjusted on the video monitor? See the
manufacturer’s documentation.
 Are the video monitor’s signal and power cables properly installed?
 Does this video monitor work correctly if plugged into a different system?
7.4.4 System Cooling Fans do not Rotate Properly
If the system cooling fans are not operating properly, it is an indication of possible system component
failure.
Check the following:
 Is the power-on light lit? If not, see Section 7.4.1 , “Power Light does not Light” .
 Are any other front panel LEDs lit?
 Have any of the fan motors stopped? Use the server management subsystem to check the fan
status.
 Have your fans speeded up in response to an overheating situation?
 Have your fans speeded up in response to a fan that has failed?
 Are the fan power connectors properly connected to the front panel board?
 Is the cable from the front panel board connected to the both the front panel board and to the
server board?
 Are the power supply cables properly connected to the server board?
 Are there any shorted wires caused by pinched-cables or have power connector plugs been forced
into power connector sockets the wrong way?
7.4.5 Cannot Connect to a Server
 Make sure the network cables are securely attached to the correct connectors at the system front
or back panel.
 Try different network cables.
 Make sure you are using the correct and the current drivers. Go to http://us.kontron.com/
support/ for a link to the drivers.
 Make sure the driver is loaded and the protocols are bound.
 Make sure the hub port is configured for the same duplex mode as the network controller.
 Make sure the correct networking software is installed.
 If you are directly connecting two servers (without a hub), you will need a crossover cable.
 Check the network controller LEDs next to the NIC connectors for activity.
7.4.6 Diagnostics Pass but Connection(s) Fail
 Make sure the network cables are securely attached.
 Make sure your network settings are correct.