Fans

Problem Blue LED on fan

Cause Fan is not properly assembled

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

Validation Verify the blue LED on the fan is turned off and all fans rotate at normal speed.

Problem Rotation speed is too high, fans are extremely noisy

Cause High temperature in Chassis surroundings

Resolution

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

Validation asg hw_monitor indicates that fans rotation speed is normal and the threshold is not crossed