I'm a beginner for diy egpu. I use Sonnet Echo Express Card/34 Pro Thunderbolt Adapter + PEAL V2.1+GTX 650 ti Boost (also Purchased DIY eGPU Setup) After I plugged in all parts, I can see the Graphic card with Error 12 in "Device Manager". I tried to use MBA PCI.bat and Startup.bat setting "http://forum.techinferno.com/diy-e-gpu-projects/4271-2013-11-macbook-air-win7-sonnet-echo-expresscard-pe4l-internal-lcd-%5Bus%24250%5D.html", but it still show "Error 12" Now, I'm no idea how to config the setting in "DIY eGPU Setup 1.3". Anyone can teach me how to config it?