Hello guys, as the title says, I have EVO 970 plus plugged into Gigabyte X99 UD4 and I'm stuck at pci 2x2, thats what samsung magician says. The performance is abysmal, I'm seeing people posting over 3000 MBps read/write values for this kit, whle I'm getting 800/600 R/W, my other SSDs (both 840...