Specifications

80 007-4276-001
4: Solving Problems
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 switch?
• Is the power-on light lit?
• Did any of the fan motors stop. (Use the server management subsystem to check the
fan status.)
• Is the cable from the fan board connected to the baseboard?
• Are the power supply cables properly connected to the baseboard and the fan board
assembly?
• Are there any shorted wires caused by pinched cables or power connector plugs
forced into power connector sockets the wrong way?
If the switches and connections are correctly installed and AC power is available at the
wall outlet, contact your service representative or authorized dealer.
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 “Using the System Setup
Utility” in the SGI 1450 Server User’s Guide.