No offense, but had you researched MORE, you would've found plenty of threads on this forum and others stating that a non-VIVO x800 is unmoddable. This is not something to be taken personally, though, as even the best of us have bad luck/experiences from time to time. Even the most seasoned of enthusiasts need to be reminded that patience is a virtue found even in the computing world.
-EDIT- The K8N-E is not a bad boad, but it offers absolutely nothing new or different than any of the other NF3 boards, especially compared to newer entrants such as the DFI UT. Therefore, I fail to realize how the purchase of a K8N-E was the result of hours of research based on 30 boards (especially since I doubt there are even 30 different A64 motherboards available today). Furthermore, I assumed you'd be interested in overclocking your A64 in the same manner that you are your x800, and the K8N-E is far from overclocker friendly. Hence, I doubt the K8N-E is even suited for the overclocker such as yourself. ASUS makes terrific intel mobos, but their AMD releases always tend to be somewhat lackluster. The K8N-E is not terrible mobo, but it is nothing spectacular, either. It's simply a vanilla NF3 mobo, much like the A7N8X-E. Like I said before, patience and research would have found you not only a better board, but one that is probably cheaper or around the same price, such as the EpoX 8KDA3+/8KDA3j or the DFI Lanparty UT.
deception``