What's going on with the motherboard?

Question

Iron

Hello.
I switched the BIOS default to boot from another hard drive, saved f10. The computer has rebooted and won't start.
When turned on, the num, caps, scrool lock lights
and a black screen are on, it doesn’t reach the post codes, it doesn’t beep, nothing appears on the screen, it seems to freeze before reaching the initialization of the BIOS.
I pulled out the video,
changed places of the operational one,
pulled out the operational one (squeaked),
changed the power supply unit ,
pulled out the battery for a day, switched the jumper,
pressed clear cmos.
always a black screen and does not reach the post codes
. What should I do?
motherboard: Asus sabertooth p67

Answer 1

BIOS gone?
Read, maybe you can reflash it from a flash drive when you turn it on?