Why won't my computer turn on after replacing the processor?

Question

Iron

Motherboard ASUS P8H61-MX, everything worked, but recently usb ports began to fall off. They just stopped working until reboot. An inexpensive i5 processor turned up for this socket, I decided to replace it and the computer refused to turn on after replacing the processor. Gives out 4 short beeps. Googled - system timer error. I tried replacing the battery, but that didn't help. I put the old processor - it does not turn on and there are no signals at all when loading. Only the coolers are spinning. Put again a new percent - 4 times beeps. I removed the memory and the video card, blew the connectors with a pear, inserted it - it did not help. Mother died? But why does it squeak with a new process, but simply does not turn on with the old one?

Answer 1

Mother everything.
To clean up the advice, you can turn off everything, everything, everything, except for the video card (if there is no built-in one), leave one die and the old CPU and try to turn it on.

Answer 2

Decryption of signals: https://hetmanrecovery.com/en/recovery_news/bios-a...