When my screen boots up I now recall it said version 2. It's a solderless chip but I'm not sure how to tell what version. My delema is that I purchased a new xbox which turns out to be a 1.6b version. Before checking I took out the chip from my old xbox and installed it in the new one. Of course, it did not work. I then re-installed it back in my old xbox which still works. It lights up green but it now no longer shows the blue xecuter 2 screen and will only play original xbox games. Not sure what I've done.