(The following is for a bitcoin mining set up) Running a RX580 GPU on a ASUS Z97-p mobo. The mobo PCIe setting options are Auto, Gen1, Gen2 yet when my miner is running the PCIe speed kicks up to X16 3.0. I want to run at 1.0 for reasons of power consumption/heat generation. I have set the speed to all 3 settings and no matter what I do, it seems to auto run at 3.0. Showing on GPU-Z as PCIe x16 3.0 @ x16 3.0.