Wire accidentally ripped out when replacing power supply.

I did kinda the same thing when I replaced the mother board, the heat sensor for the Graphics card broke into pieces when trying to unplug from the old mother board, ah ha, there was another connector to the heat sensor for the cpu I think, so I clip it off, and soldered the new connection but forgot which wire went where so when it was all back together the hydro cooling fan spun at high speed because the machine was not getting feedback, so I took everything apart again and switched the wires and plug them in (the connector only goes in one way), not its all working like normal all 4 leds are on it must be ok. I did have one of the ram chips go bad in this mac even though the system report said it was good. Its a 2008 24 inch Running El Capitan with no problems and only one 4GBs of ram. So I am pretty happy.