should hyper transport be an option to turn on or off on the motherboard's bios? And as i said does it increase gaming peroformance?
HTT is not a feature you can turn off. If you could, the CPU wouldn't be able to do anything. But you can set the HTT link speed and voltage in the BIOS.
As for putting a AM3 CPU into a AM2 mobo, the performance difference is minimal in normal desktop apps and games. The only place that a faster HTT/QPI link spped makes any difference is in server apps and apps on the desktop that use a lot of memory.