Comment by rasz

Asus must have anticipated trouble because their boards from that time period hide I2C bus away by default :) You have to do special port knocking incantation to expose it https://www.vogons.org/viewtopic.php?p=1173247#p1173247

>They share i2c bus between clock generator/monitoring chip and ram SPD using a mux. If you switch this mux and forget to switch it back computer will have trouble rebooting because bios blindly assumes its always set to clock gen.