So I went and bought the new platform. New CPU, Motherboard and DDR5 Memory. (Everything else the same)
I had previously bought an asus board, had pretty much the same issues I have now. I did get into the BIOS once, then into the OS. The PC crashed as soon as I logged in and ever since the PC wasn’t able to POST. I blamed the mobo, maybe I had a bricked board or something. (Used BIOS flashback, no change)
So that was RMA’d and send back the to store.
I now have a gigabyte board, and am having pretty much identical issues, different codes. No POST once this time. Tried all the same steps, re-seating everything, one stick of memory, different positions, onboard graphics etc. etc. Also flashed the latest BIOS, no change.
The LEDs point to VGA. I know the GPU is fine, I have another system it works in perfectly. I have tried removing all M.2, no change. I’m at a complete loss…
My only thought now is either the CPU or Memory is defective, hedging towards the CPU. No pins are bent (None were on the old board either).
The place I would check is for debris or thermal past in the cpu socket.
The cpu 8 pin power is not properly seated.
One of the psu cables are not seated correctly.
Is possible memory dimms are not in correct slots.
Amazon unfortunately so I guess I just need to RMA the CPU. Feels to me like the CPU is having issues communicating with something. Curse of the first batch I guess
I cannot see 2 mobos brand new being bricked. Most Ryzen systems take time to actually boot for the first time. I hope you did not try to repower. If you did that will damage the firmware. If you get it to boot, the cpu may not even boost if you did. Take the whole thing apart again if you have to. Recheck every wire.