Lots of possibilities. May be RAM related.
I would just reset CMOS and try again.
Do you have a jumper switch or button on your Motherboard? Some boards may also have a jumper pin on the board or back of the MOBO.
I do not know about your particular board, but there just be a way to reset bios to default.
Also, you will likely need to uplug & purge the power before resting.
For example, My board says remove and drain power, then hold the reset CMOS button on the board for 15 seconds. reconnect power and reset bios to default.
Your should have a similar way of doing it.