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APPENDIX I: TROUBLESHOOTING 157
Appendix I: Troubleshooting
Symptoms and Probable Causes
SYMPTOM: PROBABLE CAUSE:
No Power.
• Loose power cord.
• Power switch is off.
• Paragon II switch or user station surge protection invoked
during a power recycling process. Power off the unit, wait for 20
seconds, and then power the unit on.
All computers have no
video display.
• Loose Category 5e UTP cable.
• Loose monitor connection.
• The user station is connected and functioning properly if Num
Lock key lights keyboard’s Num Lock LED.
Monitor video display
for some connected
computers is distorted.
Monitor type does not match video output designation from the
server.
Keyboard non-
functional, even though
there is no keyboard
error at power up.
Cannot input to any
computer.
• Loose keyboard connection to the user station.
• Loose Category 5e UTP cable.
• Keyboard broken. Hot-swap with a new keyboard.
Repeated “Keyboard
ERROR” at computer
power-up.
• Loose cable from the server to the CIM.
• Loose Category 5e UTP cable.
• Paragon II components may be out of order. Verify that the
server recognizes a keyboard that is directly connected. Contact
Raritan Technical support for assistance. See the last page for
global contact information.
Keyboard suddenly
locks-up when a
particular computer is
selected, but operates
normally when other
computers are selected.
• Loose keyboard cable connection.
• Voltage spike (increase) or brown out (decrease) in power
supply to connected Paragon II switch. Power off the Switch,
wait for 20 seconds, and then power on the unit. Powering
Switch from a UPS avoids variation in power supply to Switch.
Repeated “MOUSE
INSTALLATION
FAILURE” at
computer power-up.
• Loose mouse cable from the server to the CIM
• Loose Category 5e UTP cable. If an error occurs only with new
servers being added to the system, contact Raritan Technical
Support for assistance – mouse emulation firmware may need to
be upgraded for compatibility with newer servers. See the last
page for global contact information.
Mouse suddenly locks
up when a particular
computer is selected,
but operates normally
when other computers
are selected.
• Loose cable from the server to the CIM.
• Loose Category 5e UTP cable.
• Paragon II components may be out of order. Verify that the
server works with a mouse directly connected. Contact Raritan
Technical support for assistance. See the last page for global
contact information.