Regarding the problem of not being able to shut down

My computer is Dell G3 3579 2018 model, and the CPU is i5-8300H，I tried to re-customize the USB interface and perform shutdown repair according to the Opencore manual, as well as IRQ repair, but none of them solved the problem. Please help me. Thank you. and Shut down the system. Although the screen is off, the fan is still running. System DSDT-dell.dsl