Attention folks with SuperMicro LGA1155 boards (X9SCM-F, X9SCL-F, etc)!
We’ve discovered a bug in the BIOS that causes the system to hang when entering BIOS setup if the board’s RTC is past 2020. Normal booting is not affected; F11 boot menu is not affected.
A workaround if you need to enter BIOS setup is to boot into an OS and backdate the RTC before rebooting. E.g., in Linux, hwclock --set --date=2020-01-01 0:00:00. Then reboot and enter BIOS setup, do your thing, and reboot into your regular OS. Your OS should sync correct time from NTP and be happy.
A SM rep has indicated they are aware of this issue, so we’re hoping for a BIOS update soon to fix the issue.
Follow the #x9scm-2021-date-issue channel on Discord for updates.