Gigabyte GA-P55-UD4 @ Hexus

"LGA1,156 chips differ from their LGA1,366 brethren by integrating the PCI-Express lanes directly from the CPU. That, then, removes the need for an IOH and QPI link to the processor but reduces the total number of lanes to 16. The chipset, P55 for example, connects to the CPU via DMI, just as the X58's IOH does. In effect, the integration on LGA1156 (Lynnfield) is such that it integrates a complete northbridge to the execution cores. Say goodbye to the IOH."