We do apologize for this! We don't sell Control Box and remote separately.
Please remove the pump or try to see if there is any options to control the speed of the CPU fan on the motherboard.
No, we do not carry of offer any other parts.
Fist, please make sure if the degree of the CPU is normally high such as intel i9. Second, if the problem is not from the CPU, please confirm that the setting of the cooler is correct and the amount of the thermal paste is sufficient.
Please send us a video to show the leak. We will contact you and provide the relevant warranty.