PC stuck at BIOS boot screen

Solution
Have you tried clearing the CMOS (Clear RTC RAM (CLRTC)) to reset the BIOS Setup back to defaults?

Are you using motherboard BIOS Version 2001?
If you're using a USB keyboard and mouse, did you plug them into two USB 2.0 ports?

ASUS_M5_A78_L_M_USB3_Rear_IO_Panel.jpg
 


I'm using a USB mouse, keyboard is PS/2. I also want to add that the PC was running perfectly fine last night, no problem whatsoever.