Yes, the B450 Tomahawk Max features a safe boot button.
Yes, the B450 Tomahawk Max features a safe boot button.
The B450 Tomahawk max may not have a safe boot option if the PC crashes during OC.
This guide seems unfamiliar with overclocking techniques. Please review the wiki first—it may attempt to boot three times and then either reset the CMOS or power down. If it powers off, you'll need to manually reset the CMOS.