I am in the process of building a new Linux workstation using the Tyan Thunder K8W (S2885) motherboard and a single dual core Model 270 Opteron. While I know that this motherboard will support the dual core Opteron, I am confused about the possibility of adding a second Model 270. Although Tyan claims adding a second dual core Model 270 will work, I am concerned about the 2-way description of the 2xx series processors. Does this refer to the 2 physical chips or what? My gut instinct is that this notation implies that only a single dual core is usable on the motherboard and that a 4-way (8xx series) processor would be needed to use both sockets on the motherboard. Thanks in advance for any clarifications. Jack