Thanks for the notes! I’ll look around for this post card. I have power and IPMI LEDs looking happy but only after I latch power by shorting the ATX connector to ground and skipping the power button header.

I’m in the same boat with an X10SDV. I went down the rabbit hole for ACPI and the super micro troubleshooting docs but I haven’t been successful. If you are accessing IPMI then you’re ahead of me.

I would check every single jumper and look for any obvious signs of short circuits like scorch marks.

Otherwise good luck!