check your bios, if its new bios yes if its old bios probably no - you need to check the bios. if you put the chip and it don't boot - i say no!
seriously, stepping changes usually require a bios update - you could buy a new mobo and get 6 month old bios
giga board are pretty nice i used those pre P6T, i like the sata they lock
asus is my first and only.....asus bios is the only way to go!