Hello: I just want to relate a success story I've had on an older PC I have doing multimedia duties. It's has a socket 939 motherboard with an Opteron x64 185 dual core. It has an nForce 2000 professional chipset (same as nForce 4, I believe). I tried to install W8 x64 on it, but was met with the now familiar graphics corruption symptom of non-compatible hardware. I was able to install x86 alright though. A few days ago, I read an anecdote somewhere online where someone experiencing the graphics corruption issue had found a workaround. He said to set the HyperTransport option in the bios to "1x" instead of "automatic." I did this, and was able to install the x64 version successfully, and it runs flawlessly. The person I referenced said he was able to to up his HyperTransport setting after installing, but personally, I was not able to boot unless it was set to "1x." There is seemingly NO performance hit, at least none that I can gather. I just thought this might be helpful to someone.