However, MSI and Abit are calling nForce2's south bridge MCP2 and MCP2-T.
Others mobo manufactures are calling nForce2's south bridge MCP and MCP-T.
Now, I would simply dismiss this as a mobo manufacturer wanting to distinguish nForce MCP from nForce2 MCP and taking the initiative to add the 2 to MCP2. However, I've actually seen photos of the nVidia chipset with MCP2 on them. I've also seen tons of photos of the nForce2 chipset that only show MCP or MCP-T.
I can't speak for abit or msi but on the asus board mcp-t is the one you want. The stands for turbo (totally misleading). This chip has the dual lan and the killer Dolby sound. It is definitly worth the extra $$.
Regarding your problem, you have a classic ID10T error code. Do you have the box the computer came in? ARRRGH