ROG STRIX Z490-I GAMING
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Chapter 1
17. Thermal Sensor header
The Thermal Sensor header allows you to connect a sensor to monitor the
temperature of the devices and the critical components inside the motherboard.
Connect the thermal sensor and place it on the device or the motherboard’s
component to detect its temperature.
The thermal sensor is purchased separately.
18. 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.
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