My apologies, i figured Acer Aspire X1420 would be self explanatory through google but here you go: http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1709367&CatId=4928
Also you misread, we never attempted to do anything with a video card with a 250. We're concerned about the computer turning on period, this has little to do with the video card. Its just the reason why we want to upgrade.
[and yeah i told him to get a good rated on newegg or tiger, but he was impaitient