mainmind wrote:
Hello,
What parameters exactly force this double boot?
Is this behavior officially documented on any motherboard?
Probably not documented in the manual, as it doesn't really have any impact on the end-user experience other than taking an extra second or two.
It depends on the platform, however, it can be anything from CPU parameters to a USB controller. Certain platform configurations don't like a straightforward power cycle, so to circumvent situations the board will do this for you. I'm sure if you were forced to go into the UEFI, revert to defaults, reapply your OC, and boot again you'd be asking that question instead.
It can also be due to failing memory training and retrying. This is due to the applied overclock not being able to pass POST stress tests.
In short, it's normal and nothing to be concerned about. Stopping on 0D sounds like instability.
13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090