hi, I am a new member and also a newbi and I need your help please. I have an Aurora desktop that I purchased oct of 2009. it came with an nvidia GTX 260 and now I want to upgrade (finally) to a GTX 770. my motherboard is a 0H869M version A00 running the i7 cpu 920 @2.67 ghz. the GTX 260 board is a 2.0 X 16 and the GTX 770 is a 3.0 X 16. this will be the first upgrade I've done to this computer. I read somewhere that the new GTX 770 won't work properly and that it will bottle neck because the motherboard is too old. is this true? any suggestions would help before I purchase the GTX 770. thank you ..