Quote Originally Posted by Shintai View Post
The 16 PCIe lanes wont go through the PCH. The PCH might have up to 4 x1 slots in best case. But could also be 0. You aint doing much via a 2GB/sec each way interface. Or PCie x4 2.0 that the DMI actually is on PCH.
On Bloomfield, PCI-E goes through Tylersburg's IOH, not the Processor and nothing to with DMI.