gigabyte m57sli-s4 with extra bios socket

ST wrote up a nice howto on adding a PLCC socket to the m57sli-s4.

This is a great alternative to de-soldering the original chip to add a socket. He still needs to do some more testing, but this sure looks promising!

In other news, the LinuxBIOS v2 mainline tree now has the m57sli-s4 code merged, so it builds and works properly without need for extra patches. I’ll update my build tutorial shortly.