Hi everyone i am planning to buy a msi Nightblade (mi2-005tw) it has a intel core i7 -6700, a nVidia GTX970,DDR5 4GB, a 1TB 7200RPM+128GB 2.5" SSD(128GBx1) hard drive, and DDR4 8GB of ram. Now i may want to upgrade hard drive, ram, and graphic cards however the hard drive and the ram i can easily upgrade them but graphic card i have no idea if it can be upgrade it i want to go from gtx 970 4gb to gtx 1060 6gb have any of you ever done this ????