DailyTech writes NVIDIA is working on the nForce Pro 3600 and nForce Pro 3050 chipsets. These server chipsets will be based on the MCP55 and will feature support for the AMD Opteron Socket F.
nForce Pro 3600 is the stand alone core logic and nForce Pro 3050 is the additional I/O controller -- similar to nForce Pro 2200 and nForce Pro 2050.
nForce Pro 3600 can be used alone or in conjunction with nForce Pro 3050. The MCP55-based nForce Pro 3xxx core logics offer the same PCIe, Ethernet and SATA support found on nForce 590, but with additional tweaks for Opteron, including a separate networking and storage driver suite. NVIDIA's material claims MCP55 Pro has substantially more throughput than HT2000 devices for PCIe and BCM 5721 for Ethernet.