Hello
Same scenario here, ~20 boards in production, had 5 of them rebooting randomly when used in a proxmox cluster.
From these 5 boards, 2 of them ended up giving a 00 boot code at some point.
We have contacted Asrockrack support, they exchanged the 5 boards without problem but they did not tell us what was wrong…
So we are worried to put these new boards in production, they are “revision 4.01”, same as the faulty ones.
We also had narrowed the issue to some serial numbers but today we had another board failing, and it has a very different serial than the5 previous boards.
This board has 281 power on days.
We have some other B650D4U boards that seem to be immune to the problem, having 613 power on days without issue, so there is certainly an hardware fault introduced at some point.
We replace them with Supermicro H13SAE and can confirm that it fixes all our issues keeping all other hardware the same, so problem definitively linked to the B650D4U.
Now as Asrockrack is sending us boards in exchange we wonder what to do.
-do we try these and wait 3 - 6 months to see if they fail
-do we sell them at a loss and replace them with Supermicro ones ?
This has definitively caused us to loose trust in asrockrack, having more than 70 * X470D4U / X570D4U in production for years without issue, this is a shame for them.