I have a new em945g motherboard and need to hook up a on/off switch from an old case. the board came with diagram that does not show which of the connectors is for the sw. its labeled front panel and has 19 pins 6 in pairs one by it self then12 on the other side looking down at the motherboard . don't want to burn it up. where can I buy and what do you call It? I have looked under front panel switch and everything I can think of with no results. thanks