I don't know the answer nitestick, but everything i've read points to quad cores only being on socket F not AM2. Admittedly this is sketchy and I havent looked around for over a month but still.
Edit:
heres a post i made back in may, admittedly that was a while ago:
I'm not convinced that AM2 will support quad core, i've only heard that K8l quadcore will be on socket F and that there will be k8L dual core on AM2.
"In early 2008, AMD's corporate roadmap claims a quad core desktop CPU will make an appearance, dubbed Greyhound. Greyhound is slated to become the first quad-core AMD chip to use the HyperTransport 3 bus, and the memory controller is slated to support DDR2 and DDR3. Unlike Deerhound, Greyhound will use the K8L architecture, and all the goodies that come with it, including the 5.2GT/s HyperTransport support. Unless AMD's plans change drastically between now and 2008, the processors will require a new socket."
I can't find any evidence that AM2 supports 4core.
Edit:
heres a post i made back in may, admittedly that was a while ago:
I'm not convinced that AM2 will support quad core, i've only heard that K8l quadcore will be on socket F and that there will be k8L dual core on AM2.
"In early 2008, AMD's corporate roadmap claims a quad core desktop CPU will make an appearance, dubbed Greyhound. Greyhound is slated to become the first quad-core AMD chip to use the HyperTransport 3 bus, and the memory controller is slated to support DDR2 and DDR3. Unlike Deerhound, Greyhound will use the K8L architecture, and all the goodies that come with it, including the 5.2GT/s HyperTransport support. Unless AMD's plans change drastically between now and 2008, the processors will require a new socket."
I can't find any evidence that AM2 supports 4core.