After a period of careful observation and with the help of everyone, I have finally managed to upgrade my system to water cooling.
I bought the water cooling equipment from a direct channel. When passing through the water cooling pipes, especially the metal water tank of the radiator, I felt it was hot enough to cook an egg inside. Since the fan on the metal water tank is exhaust-type, the airflow feels quite weak, so I tried using a small fan to blow air, but it was still scorching hot! From this, you can imagine how high the temperature of the display chip is! Due to the high temperature, the water cooling pipes were slightly softened. Therefore, I made further modifications: I purchased two high-power fans and installed a small reservoir myself, after which the temperature dropped significantly. Now when I touch it, it's basically the same as body temperature. Ha ha, the modification succeeded!
After finishing the modification, I discovered the biggest problem: the main unit could not be moved. Moreover, the entire set of water cooling equipment on the table looks like putting Mercedes-Benz’s engine into a Chery QQ car—it's really ugly, and almost impossible to move. Fortunately, with the help of a friend who gave me some ideas, we decided to custom make a rack out of stainless steel. After meticulous design, I handed it over to my friend for production. The Taobao ID is "Chuangguanzu". The size fits perfectly, the imported stainless steel is quite substantial, haha, completely done! What do you all think?