Supermicro SuperServer E403-9D-4C-FRDN13+ User Manual page 61

Overheat/Power Fail/Fan Fail LED
When the light for LED3 is solid red, it means overheating. When the LED is blinking red, it
means a power failure or fan failure.
Chapter 3: Motherboard Connections
Overheat/Power Fail/Fan Fail
LED Indicator
LED Color Definition
Solid Red Overheat
Blinking Power Failure/
Red Fan Failure
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