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5-14 Solving System Problems
System Cooling Fan Does Not Rotate
Note:
The system has a cooling fan module
behind the hard drives. In addition, there is a
cooling fan that is an integral part of the power
supply. There are no serviceable components
inside the power supply. If the power supply is
opened, the manufacturer’s warranty is voided.
Use the following list to isolate a possible cause:
Is AC power available at the wall outlet?
Is the system power cord properly connected to the system
and the AC wall outlet?
Is the power connector for the cooling fan connected to the
system board?
Is the front panel power on indicator lit?
Is the cable from the front panel board connected to the
system board?
If the switches and connections are correct and the power
outlet is functioning, the power supply has probably failed.
Contact your service representative for assistance.
Diskette Drive Activity LED Does Not Light
Use the following list to isolate a possible cause:
Are the diskette drive power and signal cables properly
installed?
Is the diskette drive properly configured?
Is the diskette drive activity light always on? If so, the
signal cable may be plugged in incorrectly.