X570 Auros Master losing BIOS settings

[Bonzo]

Over the past week my X570 Auros Master with the F21 BIOS has lost its BIOS settings twice.

The first incident occurred after the machine awoke from sleep. I noticed the settings were lost after my VMware Workstation VMs failed to run because SVM was disabled. All other BIOS settings were lost.

The second incident occurred after a power cut - All BIOS settings lost.

Annoyingly the BIOS also appears to lose the profiles I'd configured so on both occasions I was forced to manually re-enter all required settings.

Is this an issue with the latest F21 BIOS or is there something more sinister at play?

[shadowsports]

Greetings,
Haven't done a lot of research on X570 BIOS', but a UPS would go a long way to improving the reliability of your system.   

[AgentFXA]

Over the past week my X570 Auros Master with the F21 BIOS has lost its BIOS settings twice.....

Late, but It's simple - either the battery is flat or replace the mobo