Case ~ DIYPC DIY-BG01 (https://www.newegg.com/p/N82E16811353121?Item=N82E16811353121 )What is the make/model of your case?
Good cooling starts with getting a good flow of fresh air to the cooler for your cpu and gpu.
What fans are installed and where is the kraken radiator mounted?
What is the direction of airflow for all fans?