You should contact the motherboard manufacturer to determine comparability with the processor.
https://www.asus.com/Motherboards/M5A97_LE_R20/HelpDesk_CPU/ , your processor is supported by this motherboard, you mentioned, Asus M5A97 LE R 2.0. If necessary, update the firmware to the latest. But per your description, this processor might work on the same model motherboard before replacing. If so, I guess there might be some thing also wrong with your processor. I suggest you verify your processor on other boards to confirm it functions well. I would also want to know if you change the memory modules too? Other working processors are the same ones as AMD FX-8350, or something else? Have you cleared the data stored in CMOS, before testing your processor?
I would love to hear your feedback! I just wish you good luck!