The reboot is a feature, although annoying there's nothing you can do about it other then not changing settings in bios
yep i agree.

I'm pretty sure it does this to let the bios update the dmi pool. it only appears to happen on miner after adding new hardware &/or changing key bios settings.

@Chosen i'm happily running 9x400 24/7 & to be honest the only voltages i've manually set are vcore & vdimm, all others are on auto.