Sorry!
Ok, go to bios and set it so it will redo or re-set dmi settings. I think i have the right wording, but you should be able to find it based on that.
Again, in the bios, if plug and play is set to yes then set it to no. Trust me, there wont be any harm done setting it to no, usually does a lot of good.
Do all that, then try installing again, starting with chipset drivers then video. If they install, each time reset dmi settings.
Good advice + great people = tek-tips