SuperMicro BMC unresponsive after shutdown?

[ericloewe]

: MAC address and IP configuration for the BMC, BMC status, BMC version etc. and while some of that can be located in flash, some of it is requested over I2C.

The BMC does not communicate with the host via I2C on any Supermicro X10 boards. The ASpeed 2400/2500 connects to the host via PCIe (for the graphics adapter/remote view), USB (for virtual IO devices) and LPC (for access to IPMI data, BMC maintenance, etc.). Additionally, the host firmware SPI flash is muxed between the BMC and the PCH to allow for firmware upgrades via the BMC WebGUI.