Intel ME communication while CPU is sleeping or off: SMBus

[sethf]

Xitter post from 2017

[irvinewade]

This is why it is important not to connect the integrated LAN controller (even to an RJ45 connector on the board, but in any case not connect an ethernet cable to the RJ45 connector if one exists) and instead use a separate dedicated LAN controller for actual ethernet purposes.

[sethf]

More screenshots for those that don’t have xitter accounts