7.
CATT LED (CATTERR1)
The CATT LED indicates that the system has experienced a fatal or catastrophic error
and cannot continue to operate.
8.
Q-Code LEDs (LED1)
The Q-Code LED provides a 2-digit display that shows the status of your system. Refer
to the Q-Code table of this user guide for more information about the 2-digit codes.
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Chapter 4: Motherboard Information