In the current downloaded manual for the Maximus VIII Formula, I found the following error: Page iX: "The PCIe x4_4 slot shares bandwidth with SATA6G_56. The PCIe x4_4 is default set to x2 mode." This is the specs section and the slot should be PCIe 4x_3, at least that matches page 1-26. Since there is no PCIe 4x_4 on this motherboard, I think my correction should be right.