I recently just received my replacement s2f, installed, and booted only for it to reach the Republic of Gamers screen and freeze. I can't enter bios, I have cleared CMOS (but I haven't take out the battery or switch the jumper or booted with a single piece of RAM). My LED poster also shows no sigh of life, not even an attempt to POST.
Bought a new CPU, same problem. Bought a new hdd, nothing. Swapped for a single piece of Kingston pc6400, got a faint CPU init, tried clearing CMOS, and came up with same problem (led poster shows no life).