"I don't think I see any CMOS battery in that motherboard, Asides from entering the BIOS mode during the start up, Other ways to enter BIOS Setup is to hold a key down during bootup, which may cause a keyboard error, allowing you to enter it.
Finally, if nothing else works, reset the contents of the CMOS on your motherboard by pressing a special CMOS clear button or moving a jumper to clear it. See details in your motherboard manual and also
https://batterytools.net/.
Finally, if you can’t do any of that, remove the battery from the motherboard for a couple of minutes, and then reinsert it, followed by booting"