Whenever power is interrupted to the system the CPU settings goes back to default for re-detection and could take some time. If you are overclocked then the overclock will revert to CPU default.
All other modified BIOS entries are sustained. Just the CPU settings revert.
If you are not overclocked then this will be like the first post and boot after a new build and require that you enter the BIOS.
A work around is to enter then exit the BIOS and the system will boot normally.
I have already established preliminary communications with ABIT regarding this issue with the AI7 on behalf of several owners in the ABIT forum who have also posted on this issue.
I've build my son's 3500 MHz box predicated on the fact that the AI7 would sustain the overclock but everytime power is interrupted it reverts to default. This is issue is of major concern to me also.
That seems to indicate BIOS issues to me and currently there are no updates to address this.