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Okay, I had to edit my previous review. The problem I wrote about in my last review was a problem with my case and not the fan. I took my case apart and cut the area that was preventing me from installing the fan. I reassembled the case, installed the new fan and was blown away with how quiet the fan was. I'm not an overclocker, I I bought the fan because of all the good reviews of how quiet they ran, and it didn't disappoint. These are the only fans I will use from now on. I'm even replacing my 140 mm and 120 mm Corsair fans.

This is an amazing CPU Passive Cooler but let's get one thing straight. In terms of Performance this will not be better than most Air Cooled Air Coolers and it definately wont beat any kind of watercooling. If you want the best air cooler go with a Noctua D15. I ran this on a AMD Ryzen 5600G at 1.47 CPU and 1.35 Volt IGPU and 1.35 SOC VCore with ambient air temperatures of 25C / 75 Degrees Fahrenheit. Overclocks were at: 4.4 Ghz all core CPU 2300 Mhz iGPU RAM is G.Skill Trident Z NEO 3600 Mhz at CL14 with DOCP enabled in the BIOS. Motherboard is a Asus B550XE with a 14+2 VRM running completely passive also and this is the elephant in the room which is that you probably are going to have VRM overheating issues because there is no airflow over the VRM's if you are going with a truly passive build. Going with anything less than 12 VRM's and you are going to face overheating issues due to no airflow. I am able to complete a Timespy Benchmark with those settings hitting 91 Degrees Celcius which is very warm. Now keep in mind that I am using a 6 Core CPU so your results will vary but for a passive cooler I feel that 4.4 Ghz at 1.47 Volts on a 6 Core CPU is really the limit after a day of testing many different settings because with these settings I am already hitting 90C Temperatures. It simply is not possible to hit very high overclocks on this cooler due the the fact that you will hit TJ Max and the computer may shut down to prevent overheating. So that begs the question... Who is this CPU Cooler really for? And the answer is that it is for people who are fine with running a CPU at speeds that are above stock average overclocks but are OK with not getting the highest possible overclock since you are facing a temperature limit. It is also useful for people that want to save money on electricity by not having any moving fans and avoid dust altogether. It's also useful for Enthusiasts wanting the best passive CPU cooler on the market.

Best you can get

sufficient clearance to get RAM in slot 4 vertical fins for my horizontal motherboard layout stack is offset so it fits perfectly with the pipes going perpendicular to the PCIe slots, allowing front-to-back airflow to pass through the fins, and not block the 16x PCIe slot. heat pipes wouldn't block anything in any rotation, unlike some other mfg products

-Dual heatsinks with no RAM clearance issues -Impressive cooling with suboptimal case ventilation -7mm offset mounting for AM5 (still no clearance issues)

I have a 9950X and at idle I sit around 50c and while playing the most demanding games its around 90c which is crazy cool better than most liquid coolers

I previously had a fractal pop air, but I plan to reuse that to sell some other parts I have on hand. The build quality and fit and finish of this case is unbelievable for the $115 I paid for it. But its decently big at 59L. Im glad I decided against the 900 dx, it would have probably been a bit big at 84L. I really like how there are 2 fan hubs on both sides of the case. The rgb looks excellent as well. Specs on the pc: Ryzen 7 9850x3d Be quiet! Silent loop 3 360mm with Jonsbo ZB360B Standard Blades Msi b650-p atx WiFi motherboard 2 x 16gb DDR5 6000 CL30 Teamgroup T-force Delta RGB ram AMD Radeon Rx 9070 XT Reaper 3 fan 2tb Crucial P5 plus, Gen 4 nvme. Be quiet! Light Base 600 DX Jonsbo ZB360BR Reverse Blades x 2 Jonsbo ZB120 B Standard Blades x 1 Montech Century II 1050w 80+ GOLD Power Supply

Fast When you want the very best

Very quiet and moves good amount of air. Long cable and all that.

other then one of my RGB pin was slightly bent but was able to straighten it out. other then that for the price this board is great. I got a white pc built so it look and perform amazing. I would definitely buy another one in the future.