Does it boot into a live USB when you remove your SSD prior to rebooting? I had issues with autoshutoff, after I messed around with the boot manager settings. Removing the presumably messed up boot partition resolved that issue.
The LEDs for me only started showing the codes after ~ 2 minutes … and i missed it multiple times thinking also that it was completely dead… only after being asked by support for a three minute video of the LEDs did i realize they were actually blinking 
My desktop (batch 12, 64GB) arrived today. After excitedly putting it together I found it was DOA. Fans spin for a couple of seconds then stop, after around 2 mins the LED flashing starts (10 times by my count, so looks like a power issue).
@Gunge
i had the same behavior and was sure it was broken, but it turned out, that was an OK state, and i just hadnt waited long enough for it to show sth on my monitor…
Well, good. Glad to hear yours wasn’t DOA. Mine never blinked, and I waited a heck of a long time. If this is their idea of a POST code, the design is bad. User feedback is critical to understanding how a device boots.
Thankfully, they’ve refunded my cash. Very expensive for a very poor design.
Thanks for the response.
So what is the conclusion - we just need to wait for a long time because there are no bootable drives and with some patience we should get there?
I built it during my lunch break WFH, so I wont have a chance to play further until this evening.
Its somewhat weird behaviour - I moved the system to a TV, booted and left it for 15 mins. Again nothing appeared on screen.
Losing hope I restarted and it all worked fine, went straight to a screen that said there was no bootable media. Put in a USB stick and everything is installing fine.
Very happy, but also a bit confused.
Tracking this issue on the github. Have had similar experiences.
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yeah … my suspicion is it has to do with the memory amount maybe as well … very first boots seem to check the memory and depending on size take a long time.. because it was very similar for me … that said, just a suspicion, i am happy that ours is working fine now 
and running ollama fine… nice playground 
I just asked for closure on the ticket I submitted here as it is probably not a bug.
I will say, if you reset your bios, you should expect it to take sometimes 2-3 minutes to re-train the memory. Almost every AMD chip in modern memory (up to and including Zen 1) will take some time after a reset to train and may even restart a couple of times. All I can say is you should give it enough time to boot if you’re having issues.