Pics of the differences in pin layout for z370 and z270. Z370 has more vcc, to go with what intel been saying that coffeelake needs more power. It seems what they did was change those rsvd (reserved) pins to power (vcc) and ground (vss). VSS: 377 -> 391 (+14) VCC: 128 -> 146 (+18) RSVD: 46 ...