Hello, I have a fan that runs directly off of my psu through a 4 pin molex to 3 pin fan adapter. The fan ran very loudly so i modified the adapter to input 5v instead of 12v. Is this safe, will their be any complications from doing this? The drop in voltage was achieved by modifying the molex fitting to be insert able upside down ( only molex 2 pins are utilized by the adapter. One positive and one ground).