ROG MAXIMUS XII FORMULA
1-25
Chapter 1
22. Q-LEDs
The Q-LEDs check key components (CPU, DRAM, VGA, and booting devices) during
the motherboard booting process. If an error is found, the critical component’s LED
stays lit up until the problem is solved.
The Q-LEDs provide the most probable cause of an error code as a starting point for
troubleshooting. The actual cause may vary from case to case.
23. Storage Device Activity LED
The Storage Device Activity LED lights up or blinks when data is read from or written
to the storage device or storage device add-on card.
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