Review on 🌀 Wathai 80mm x 25mm PWM Fan, High Speed 5000RPM 12V 4Pin Fan, DC Brushless Cooling Fan, Large Airflow Fan by Danierl Temple

I've had an old school Antec case for over 12 years. Eventually I dyed mine black because beige wasn't "in" anymore. A few months ago I decided to buy a new motherboard, processor and more. I checked a number of cases, but I didn't like any of them. The problem with this Antec case was that it only has three small 80mm front fans and two 80mm fans. I wanted the case to be big enough, but I needed to find really powerful 80mm fans that could be controlled from the motherboard. They ended up being perfect so I got two in front for the intake and two in the back for the exhaust. At lower CPU temperatures I mostly keep the fans at their minimum speed, or about 30% of their maximum speed. At this speed they are not that loud, barely noticeable. When my CPU gets hot I force the motherboard to crank it up to around 50-60% (the audio gets loud but they do their job and move a lot of air). As I get closer to the maximum CPU temperatures, they hit 100%. They sound like an airliner taking off, but move as much or more air than a 120mm fan. The first image shows how I cut out the 120mm exhaust pipe above for the AIO CPU cooler, but these fans can be seen in place. The other photos are factory photos showing how they are normally fitted. I need to remove the zip ties and install the rust bolts properly. Using an AIO CPU cooler that bleeds air from the heatsink was another tactic to keep the case as cool as possible, and I didn't like the idea of a 1.5lb CPU fan on it my CPU hangs. I love this case (although it's bloody heavy as it's 1mm thick solid steel) and these fans allow me to continue using it with modern hardware when I would otherwise have to upgrade to a case with 120mm fans . I know when it gets hot and they need to be turned on fully to circulate air as efficiently or better than a case with large fans. When I'm not testing my CPU on a dyno or otherwise using it, the motherboard automatically lowers it to around 30% and the audio isn't as noticeable. I have 4 of them installed in my case. Make no mistake, when they're all running at 100% it sounds like my computer is an airplane about to take off. I want my motherboard to have the ability to run those 80mm fans very high when needed (which isn't really the case, I didn't need to run them at 100%). Sometimes they should be at 50% when I'm doing something heavy on the computer and you can definitely hear them. They're pretty quiet at 30% but get pretty loud past 50%. If you use them at full speed, expect them to be very loud.