I understand Ivy Bridge MBs have only 16 PCI lanes. I understand I can run 8x/8x 3.0 SLI. However, I have an external sound card (PCI-E 2.0 1.0) - hence my question - if I stuck this card in a 1x slot will this mean my second graphics card will be forced to 4x? I'm looking at this MB: http://www.asus.com/Motherboards/Intel_Socket_1155/SABERTOOTH_Z77/#specifications And though it says: 2 x PCIe 3.0/2.0 x16 (x16 or dual x8) *2 1 x PCIe 2.0 x16 (x4 mode, black) *3 3 x PCIe 2.0 x1 I don't see how it can be dual x8 AND 4 more PCIe x1 - doesn't that translate into 20 lanes...? Thanks.