Acer Network Device Altos R520 Bedienungsanleitung PDF herunterladen (Seite 148)

5 Troubleshooting

138

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.

Characters are distorted or incorrect.

Check the following:

• Are the brightness and contrast controls properly adjusted on the

video monitor? Refer to the documentation that came with the

video monitor.

• Are the video monitor’s signal and power cords properly

connected.

• Is the video monitor working correctly when plugged into a

different system?

System cooling fan do not rotate properly.

If the system cooling fan is not operating properly, it is an indication of

possible system component failure.

Check the following:

• Is the power indicator lit? If not, see “Power indicator does not

light.” on page 132 .

• 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?

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Acer Network Device Altos R520 Bedienungsanleitung Seite 148