connected the h100's pump to external powersuppily with molex to 3pin male adapter and tried out if my idea truly works? and it does, the pump now pumps at full speed alltotime and im fine with that cause it's still quite silent pump cause it's prodused just for this inviditual product

CPU block re installed on the computer and connected to molex with 3pin to molex adapter

Connected all the fans on the Corsair 600T:s own fan controller and Woila! it does work