sometimes i've heard that it's important to get the sblive! in the correct pci slot on some athlon mobo's to avoid issues, but i've built at least 4 systems with athlons and sblive!'s in the past 6 months and have never had any trouble....so going from my personal experiences i'd say don't worry about it. if it was really that big of a deal, i think we'd hear a lot more about it.