The GeForce RTX 4090, a flagship GPU for gamers, creators, and developers based on the “Ada” architecture that NVIDIA launched for $1,599 in October 2022, can be cooled rather effectively with a household air conditioner, according to a new video shared by a Chinese content creator that remains available to watch on China’s Bilibili platform.
“The video creator, oddly named ‘Electrolytic sodium carbonate’ (ESC), showcases a rather normal-looking PC tower – but next to it, there is a 12,000 BTU air conditioning unit to supercharge cooling,” one outlet has wrote of the experiment, which involved a PC with a GeForce RTX 4090 and a Core i9-13900K, one of Intel’s flagship “Raptor Lake” CPUs. “The result is that the GPU runs at just 20 degrees Celsius under stress testing.”
A separate project—a “whole house” liquid cooling system that appears to have five loops, as well as a Xiaomi KFR-35GW air conditioner that offers 12,000 BTU cooling power in a 765 x 268 x 550 mm size, arealso shown off in the video, a few screenshots of which can be found below:





“Genius, this is the ultimate solution for computer cooling. After all, the cooling efficiency of air cooling and water cooling will eventually be limited by the room temperature,” reads a positive response from one viewer. “If there is such a product in the future, I will definitely install one.”
“I recommend using this, it works great,” responded another before posting a photo of a jet engine.


Discussion (8 replies)
Join Discussion →I'm kinda surprised Z didn't just go straight to a split duct unit AC for his overkill build like this.
I've long thought about doing something like this. It's a bit overkill though for most of us but still fun to think about. I'm not kidding that everytime I walk by one of those cheap desktop minifridges at Walmart that I wonder about somehow adapting the compressor to a LC setup.
You will burn up the compressor in those real quick.
They make 4U rack-mounted water chillers that do what you want. They're purpose built for it so it wont burn the compressors up on them.
Yeah but they cost $$$$ whereas I can get those fridges for about $20 each in June when the local college kids are moving out of their dorms.
You'll be buying them every year to replace a burned compressor.
This aint new. There are guys in Australia that have run their loops into underground vaults because the ambient is 50F.
Using an AC unit is certainly unique though.
The great thing about college students is they keep coming back
It's a bit more sophisticated than wat J2C did and more performant, but jank has it charms too