You sir are awesome, I literally cannot hear it and the front LED is brighter. Temperatures are the same except the HDD is 5-7 degrees cooler.
What I did is plug the back fan to system_fan1 and I was able to put it to 600rpm which is dead silent. Then the front fan's connector couldn't reach system_fan2 so I plugged into a molex and into the psu. So it's running at full rpm, but it's dead silent still.
I wish I could give you more than best answer