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Chapter 3: Motherboard Connections
Onboard Power LED
The Onboard Power LED is located at LED3 on the motherboard. When this LED is on, the
system is on. Be sure to turn off the system and unplug the power cord before removing or
installing components. Refer to the table below for more information.
Onboard Power LED Indicator
LED Color
Definition
Off
System Off
(power cable not
connected)
Green
System On
CATERR LED
A CATERR LED is located at LED5. The orange LED indicates the system has experienced
a catastrophic error.