I would like to know if anyone is running a 2.0 card on a 1.0 slot board. I want to get a 8800gt, but I keep finding mixed reviews about compatability. I have a socket 939 mobo and 3dmark05 tells me that my pci express slot is version 1.0. I know it's supposed to be backwards compatible, but I don't want to order the card from newegg ,then it not work and be out all that money. I have a oem system so upgrading the mobo is out. I have already installed a 700w psu. I have seen some people say it works and some say it won't is there no definative answer? I don't like to leave my money up to chance. Thanks for your help in advance.