This is just a public service thread for anyone looking in the future. Since TR is so oddly high in Google search results, this may be useful.
I ran across a Dell 0YT674, full part number seems to be MY-0YT674-12402-81S-00C6 aka CPU-D42543(B) which is an OEM version of the Intel(R) Gigabit VT Quad Port Server Adapter.
I was looking for Windows 7 drivers for this bad boy and while it would install the PCI bridges, the ethernet controllers were a no-go. Intel had no help:
http://www.intel.com/p/en_US/support/hi ... 1000vtquad
http://downloadcenter.intel.com/SearchR ... er+Adapter (only Linux and FreeBSD drivers)
Dell, too, had no help in my searchin'. Most searches said to give these a shot:
However, those drivers won't find any supported devices.
The way I got it working was to manually choose a driver from the installed ones. All network adaptors, Intel, then scroll down to Intel Gigabit VT Quad Port Server Adaptor. It will complain that it doesn't know if that's the right driver, probably because it's a Dell OEM piece but who knows, really. It installed fine for me. Repeat for the other ports/adaptors.
The Intel software won't install even after that. This is a Microsoft driver and I guess that means that you can't team the ports or do VLAN stuff or load balancing or I don't know what. I did see options related to that stuff in the driver, though, so maybe you can do some of the fancy stuff. At the very least, you get a quad-port gigabit adaptor under Windows 7. What more can be done, dunno, but supposedly you can get these off of eBay for cheap.
Hope this helps any future googlers.