How do I reset the BIOS to default settings?
To reset the BIOS to default values, press F6 in the BIOS or use the Clear CMOS jumper on the motherboard. Power off the computer and unplug it from power. Then short JBAT1 with a jumper cap for 5-10 seconds before plugging back in and powering on again.
From the official Tomahawk B550 Tomahawk Msi Mag Gaming Motherboard User Guide manual, page 25
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