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160 Solving Problems
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 signal and power cables properly installed?
• Is the correct monitor/video board installed for your operating system?
• If the problem persists, the video monitor may be faulty or it may be the incorrect type.
Contact your service representative or authorized dealer for assistance.
System Cooling Fans Do Not Rotate Properly
If the system cooling fans are not operating properly, system components could be damaged.
Check the following:
• Is AC power available at the wall outlet?
• Are the system power cords properly connected to the system and the wall outlet?
• Did you press the power on/off push-button switch?
• Is the power-on light lit?
• Have any of the fan motors stopped (use the server management subsystem to check the fan
status)?
• Are the fan power connectors properly connected to the front panel?
• Are there any shorted/open wires caused by pinched cables or power connector plugs forced
incorrectly into sockets?
• If the switches and connections are correct and AC power is available at the wall outlet,
contact your service representative or authorized dealer for assistance.
Diskette Drive Activity Light Does Not Light
Check the following:
• Are the diskette drive power and signal cables properly installed?
• Are all relevant switches and jumpers on the diskette drive set correctly?
• Is the diskette drive properly configured?
• Is the diskette drive activity light always on? If so, the signal cable may be plugged in
incorrectly.
• If you are using the onboard diskette controller, use the SSU to make sure that “Onboard
Floppy” is set to “Enabled. ” If you are using an add-in diskette controller, make sure that
“Onboard Floppy” is set to “Disabled.” To run the SSU, see Chapter 3, starting on page 33.
• If the problem persists, there may be a problem with the diskette drive, I/O carrier, or drive
signal cable. Contact your service representative or authorized dealer for assistance.