First, restore the BIOS to default settings by pressing F9, then F10 to save and exit.
If the issue persists, to verify the BIOS for the motherboard is not corrupted, proceed with a BIOS recovery test to version (0156). The latest BIOS version can be downloaded from the following web site:
Instructions can be found at this link:
Load the customized BIOS again and if the problem persists recreate the file again.