Sorry I haven't been able to get back to this thread until now. At the moment, it seems that this is about as good as it's going to get with the current hw/sw support available. The bios on my Tyan s3993 mobo still has no OC options, no voltage options (including dpp), no HT3 options (yes, this board supposedly supports it), and no memory timing options. Add to that the fact that neither Broadcom, Tyan, nor Serverworks seems to have windows chipset drivers available for the Broadcom/Serverworks Ht2100 Chipset and the memory is stuck in single channel mode and you end up with this totally, utterly, stock-as-can-be dual Barcelona rig that I have here. Here's Cinebench and Everest's cpu-tests with the quads running @ the correct speeds:

















I'll see what I can figure out about the memory problem and run some in-depth benches later.......