PC always boots to BIOS

Villentretenmirth

Honorable
Mar 23, 2015
19
0
10,510
For the past week or so, my PC always boots to BIOS for some reason. I have no other issues other than a noisy CPU fan. Anybody have any idea what the usual culprit is?

Specs:
I5-4670
16gb ram
GTX 970
Samsung 1tb SSD boot drive
4TB HDD WD black storage
windows 10 pro