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Processors

PC Stuck in a Cycle of Turning Off and On After Installing New CPU

My PC gets stuck continually turning on and then off again after a few seconds after I installed the Ryzen 7 3700 CPU. I cannot even get into the BIOS. I am able to get my PC running again fine when I reinstall the old CPU (Ryzen 1400)

Any idea what is going on? What other things can I do to try and fix this?

 

What I've tried so far

-flashed BIOS v6.00

-reseated the RAM

-cleared cmos by unplugging all PC cables and removing the MOBO battery for half an hour

-pulled out my hair

 

SPECS:

Motherboard: ASRock X370 Killer SLI/ac

Original CPU: AMD RYZEN 5 1400

CPU that makes my computer continually reboot: AMD RYZEN 7 3700x

more info from previous reddit post

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