Thank you for answer.
I have already purchased a Noctua fan, so I want to give it a try.
When I tried to remove the power supply board, I found that it was connected to the front display window.
There were 4 bolts connected to the front display window, do I have to unscrew them and separate them together with the board?
The bolt angle of the front display window made it difficult to insert and remove the driver, so it could not be executed.