toleda Posted July 10, 2011 Share Posted July 10, 2011 Two GA-H55N-USB3 systems with the same bios, dsdt and os. System 1: H55N/HD 5570/10.6.7 Bus: PCIe PCIe Lane Width: x16 System 2: H55N/HD 5870/10.6.7 Bus: PCIe Sot: PCI Slot 1 PCIe Lane Width: x8 How do I get System 2 to run 16 lanes? (I've tried disabling the USB3 controller System 2 with no effect; is is enabled in System 1.) Link to comment https://www.insanelymac.com/forum/topic/262043-pcie-lane-width-x8/ Share on other sites More sharing options...
josephien Posted July 13, 2011 Share Posted July 13, 2011 did you try swapping the video card from system 1 to system 2 and vice versa to see what happens then? and it seems that you have done two different installation method/option(s) Link to comment https://www.insanelymac.com/forum/topic/262043-pcie-lane-width-x8/#findComment-1714097 Share on other sites More sharing options...
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