Hi Everyone, I recently built this new pc. Here is my current setup: ASUS P8Z77-V, Intel I7-3770K, Team Elite 1333mhz RAM, OCZ Vertex 4 SSD and 250GB Western Digital Caviar Blue. I haven't bought my video card yet and that is what I'm about to ask right now. I'm currently using the Integrated GPU of i7 3770K (HD 4000 Graphics). I installed the drivers and all of the other stuff needed to run the system. I am just confused if ever I install the new video card (planning to buy a 7950) will I reformat my pc again? or just remove the HD4000 graphics driver and mount the new video card and install the new catalyst driver without ever reformatting it? Thanks!