Fans

Problem The blue LED on a fan is lit.

Cause The fan is not correctly assembled.

Resolution Extract and insert the fan again. Lock the captive screw (where applicable).

Validation Make sure the blue LED on the fan is turned off and all fans turn at correct speed.

Problem The fan turns too fast. The fans make a lot of noise.

Cause The temperature in the Chassis surroundings is high.

Resolution

• Make sure that all open slots (missing SGMs/CMMs/PSUs) are covered with blanks.
• Make sure that all fans are correctly attached.
• Make sure there the temperature is sufficiently cool around the Chassis.

Validation asg hw_monitor indicates that fans turn at the correct speed and the threshold is not crossed.