Currently, to cool GPUs, the solution is to place a cold plate on the chip. Then, in the case of watercooling, the liquid circulates directly over it… Unless, in the case of an aircooling, an aluminum radiator is fitted. With the ” microfluidic ” method, things are different: the microchannels are etched directly into the die of the chip. The liquid is then pumped directly into them!
Microfluidic: Microsoft tests a new cooling method!
With this method, the cooling channels are etched directly into the GPU. Of course, this is done with great precision to avoid damaging the chip. Then, a unique IHS is mounted on top, featuring an O-ring seal and screw threads to connect the rest of the cooling loop. Everything has to be airtight. And the coolant is sent directly to the die. Goes without saying that you need to use non conductive liquid, similar to an immersed PC.
The advantage of this solution lies in its efficiency. By sending the coolant directly into the die, we end up cooling the area where the heat is emitted. In fact, Microsoft claims to reduce the GPU ‘s maximum temperature by 65%. This figure needs a little context, since the temperatures reached will depend on the workload and the type of chip.
Other advantages include more compact machines, while this type of cooling tends to improve component life thanks to better-controlled temperatures. And of course better performance.
On the other hand, the cost of integrating such solutions needs to be considered. There is also the question of maintenance and aging. Will this method age well or, on the contrary, will we end up with deposits everywhere, clogged microchannels, etc., after 6 months?
