Bios Mods -The Best BIOS Update and Modification Source

how do i get pass an mdg idplatform key bought a pc 2cnd hand and when i turn it on it say erroe key expiration id platform key before i can go on the cmos battery thing wrked once and then the hydro went out and now it wont wrk again any suggestions?

I didn't quite catch what you were asking, can you be a bit more detailed.

Thank You,
TheWiz