Kamikaze_Raven

I am fully aware the phase change cooling solution I talked about will not cool below ambient. It is not my goal to cool below ambient. Below ambient cooling introduces a whole lot more trouble. I merely believed that phase change cooling can transfer heat more efficiently.

I thought phase change means liquid to gas and gas to liquid change. Pressure difference should be irrelevant? Thank you for all the input. I now agree it's not worth the hassle. I probably will go with AMD cpu so insane cooling is not necessary.

Thanks for the input. I think the goal is not to go below ambient temperature but to keep it as close to ambient as possible. This video made me think that regardless how huge the radiator is, we still might not be able to remove heat from CPU as efficient as we needed. If you watch from 6:59, you will see that the CPU still gets to 80C even with this insane loop where the water temp stays stable at 20s. I suspect low pressure phase change might help? I'm not so bright at physics......

Those small AIOs are shit. Unless you have very specific reasons (small form factor for example), I highly recommend against ever using them. Their failure rate is close to 100% in the long run (5 years).

Air coolers almost beat AIOs at any price level and noise level. And air coolers are much much more reliable. I had one shitty corsair AIO failed less than a month ago. My AIO has been working for maybe 4 to 5 years which is probably considered very reliable among AIOs. But it still fails eventually. On the other hand, air cooler almost never fails. I think only custom build water loop can beat high end air coolers.

Hello. I'm a new guy to this forum, but I've been watching linus tech tips for years. I am planning to build a high end PC by the end of this year or early next year. I am trying to read every news about PC buildings. Recently I've found some videos of the so called immersion cooling solutions that really attracted my attention. First is the 3M Novec liquid. Which seems like the best performing one among all. They have a very low boiling temperature, and can transfer heat very efficiently. Essentially it is a phase change cooling solution. The drawback is that this liquid is extremely expensive. A gallon of those cost hundreds. And the whole system must be sealed in an air tight case (because they boils). Plus, 3M does not sell those liquid to consumers. Only companies are allowed to purchase them for commercial use. I also read from somewhere that those liquid are harmful when inhaled because they will condense in human lung, causing all kinds of issues. Then there is this mysterious closed loop phase change liquid cooling that Linus talked about in one of his videos. The creator did not disclose what liquid is in it. And then there is this guy from Engineered Fluids with immersion single-phase cooling solution. I read from their website. This fluid sounds much safer than the 3M Novec. It does not boil under normal temperature. It does not transfer electric. It essentially acting like mineral oil immersion cooling. But it is cleaner, and looks like it does not degrade any parts of a computer (mineral oil degrades rubber). Plus, it is much cheaper than 3M Novec, and consumers can buy them with no restrictions. 20 liters (about 5.3 US gallon) of those liquid cost around 300 to 400 dollars. Then here comes my idea. Immerse the PC in a low pressure chamber filled with the single-phase liquid from Engineered Fluids. We all knew that if the air pressure is low, the boiling point of liquid will be lower. We can manipulate the pressure so that this fluid will boil at around 35C. I suspect that mysterious phase change solution in Linus' video used this technique. Their CPU cooling block looks very heavy duty. And they have a pressure sensor sticking out. They could be using a safe liquid in a low pressure chamber so that the liquid will start to boil under low temperature. What do you guys think? Does this sounds viable? Anybody know how to get all the cords out in a sealed air tight chamber? As the liquid boils, pressure will build up again. Do you think this thing will need a safe valve to prevent the whole thing from exploding? Please let me know your opinion. There is another thread that talked about putting PC in a vacuum chamber. But it doesn't seem like people discussed about the boiling point.