Supermicro X12SCA-5F - Corrupt bios

The Mac adress was appearantly wiped, other than that it was mostly my assumption since I flashed a clean stock bios with no data. Thing is I never did reset cmos. So I did that now while having the server unplugged. And guess what, now when booting I’m stuck at code 69 again.

MAC address is first bytes in GbE at 0x1000 or sometimes at 0x2000, sometimes at both addresses, but GbE shouldn’t have such effects.

You got the minimal firmware now and you have stock. But I still don’t think this is caused by firmware. Maybe you can create a situation where USB is not getting initialized or driver isn’t loaded or, but on the long run this smells hardware. Maybe overload on an USB port just burnt a SMD fuse on the board?

Ok, you’re probably right but I’ll continue to experiment just in case. It’s not like I’ve got anything at stake if it’s borked anyway.
BTW, I mentioned earlier there’s a jumper on the board, jpme2. It’s got manufacture mode and normal mode. What I’ve read on the web is that manufacture mode opens up the otherwise write protected ME block to be overwritten. Is this a thing when flashing with ch341a or is it only when doing it with software?

Software normally (Intel fpt)

1 Like