HI because of my problem in my Asus GX701 GXR i contact local and foruns to see what is happen and why the RTX 2080 Maq 8 gb is only working at x8 3.0 maxium bus lanes speed, well the answer official from Asus is every , so every laptop Asus Zephyrus S GX701 series the PCIe maximum avaiable for GPU is a lane in the bus with 128 bits or x8 3.0 he never goes to x16 3.0 because the lane does not existe at all, this is call the Bottleneck... So only some Brands got this configurations and another boards in x16 3.0 that and Asus saying is a bottleneck to aour GPU Rtx 2080 maxQ....