It was just working, my Ryzen 5800x arrived and I put it in after going to bios and returning everything to factory settings. Turned on PC and nothing, my monitor will light up for a second, then nothing. So I put the 2700x back in and same thing. I’m not even getting a bios flashscreen
Ryzen 2700x/5800x
Asus Prime X470 Prime Pro
32 Gb corsair vengeance
rtx 3080
I thought i could update the bios after installing the new cpu?
No, you need to update the BIOS with the old CPU, then swap the CPU. Unfortunately your motherboard does not seem to support flashback / CPU-less BIOS flashing, so… Time to upgrade motherboards? 
You could try powercycling with 2700X a couple of times, try to boot with a single memory stick, and make sure you did not bend any pins while reseating 2700X. Also, your BIOS version must be at least 0222, but this seems to be the earliest BIOS the board shipped with.
Other than that, time to upgrade to a PCIE 4.0 board? 
That would set you back $150 though for a decent board like Asus Prime B550-Plus. And you seriously shouldn’t have to do that.
I guess Time of Death right now 
So If i get and x570 will my 5800x just work out of the box? Are the new mobo’s somewhat compatible with the new series?
I really didn’t want to get a new mobo ughhh.
I just don’t understand why it wouldn’t even work again with my 2700x
not necessarily
but getting one with flashback is a safe bet anyway since a compatible CPU is not a requirement for flashing
So when I get it, I should use my 2700x first?
it doesnt matter you can flash without a CPU if you want
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I was thinking this
I suspect you either managed to unseat your RAM somehow, bend a pin on your 2700x or bricked your motherboard.
#1 is easily fixable, #2 requires you to unbend the pin or borrow a spare compatible CPU so you can update motherboard BIOS and #3 means getting a new motherboard period.
$300 for a motherboard? Not the best of purchases, especially since this is the last generation of AM4 socket motherboards (so whatever you buy will almost certainly be incompatible with Ryzen 6xxx series and DDR5 RAM).
It really depends on what features you want out of it. I would probably go with something like this: Aorus B550 Pro AC. Wifi, flashback and currently in stock. Only things you miss out on; Wifi 5 instead of Wifi 6, Bluetooth 4.1 instead of 5.2, no USB 3.2 internal headers and two less USB3.1 internal headers. Otherwise as good or better than the Tomahawk.
It depends on how much you want to overclock, if you want the extreme overclock the Tomahawk is the better choice, but the Aorus board is no slouch either. And by the time you need to OC your 5800X, chances are you’re already eyeing a new motherboard/CPU combo. 
I’m not really looking to overclock. I ended up going with the b550 after reading about x570 and the b550 line for hours. I think it’s a better fit. I wanted the front usb c port
https://www.bestbuy.com/site/msi-b550-gaming-carbon-wifi-socket-am4-usb-c-gen3-amd-motherboard-pcie-gen4/6420742.p?skuId=6420742
Also no pins we’re hurt in the ruining of my motherboard
IMG_20210130_083043|720x540
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