Question PC won't post after testing old CPU

Nov 29, 2021
I was gonna sell my Ryzen 3600 and before I did I was gonna make sure it worked.

Put it in everything booted up fine and worked took it out and put my 3700x back in.

And ever since then my PC has not posted at all on BOTH cpus

I replaced ram

Tested GPU in friends PC Works fine

Unplugged everything and rebuilt pc from scratch

Reset CMOS

Left it on all night

pins on both processors are absolutely perfect

Lights on motherboard all turn on

Fans all work fine

So far I'm thinking that my motherboard is the issue and I've ordered another one

I have no idea what the issue could be or why my motherboard may have died.

Ryzen 3600/3700x stock cooler

16 gigs (now 32 lol) Corsair vengeance ram 3200 mhz

Asus 1080ti

Asus b350 prime plus motherboard.

I really don't know what the issue could have been does anyone else have any ideas?

The only thing I can think of is maybe I hit something on the board while screwing in the cooler?
Nov 29, 2021
Did you check for any physical damage on the motherboard?
My friend who is more knowledgeable about PCs said there wasn't anything that looked out of place.

The board still turns on and it will turn my monitor on just won't display anything or even power on my keyboard

The fact it doesn't power my keyboard makes me think it's the board?