Two weeks ago, Intel indirectly confirmed via the release notes for its Rapid Storage Technology driver that the Z390 platform will support the current "Coffee Lake" and soon-to-be-released "Cannon Lake" processors. SuperMicro's Z390 motherboard (C9Z390-CG-IW) recently popped up in a few 3DMark results to confirm this compatibility. The motherboard was tested alongside the Intel Core i7-8700T and Intel Core i7-8700K six-core processors. Therefore, it's safe to say that the upcoming Z390 motherboards will employ the LGA1151 socket.