You can reject the heat by shedding hot mass, but only once.
Cooling by mass effect style yeeting hot chunks of metal out the back.
Where will they go, nobody knows!
Depending on where they land, you can double the service you offer. AI computations coupled with rods from God.
When the radiation burns out a GPU, just dump as much heat into it as possible and yeet it into the atmosphere. Ez.
Goodness gracious, great balls of fire! (are raining down on my house)
Preferibly directly onto indian electronics salvagers