So when this is available, was planning on attempting to stuff the rather warm Ryzen 3800X inside, from what you have seen
@K888D , do you think it would be feasible to keep this thing cool under air with the NHU9, or should I think about mounting an AIO? I currently have it running power-limited under a NHL9 until I can stick it in a larger enclosure.
I think you should be able to find a solution that will allow you to get the full performance of the 3800X, as you say the Noctua U9S is a good starting point and should handle the 3800X fairly well under stock settings. The Noctua is also well known for its compatibility with ITX motherboards, so this would be the easiest choice:
Basically you have 135mm of CPU cooler height to play with, I think the U9S is considered one of the best performers in this height category. There are also quite a few top down coolers to choose from as well, I've tested the
Silverstone NT06-PRO which worked well with an i7-8700k:
The only issue with large top down coolers is you have to be careful that they don't overhang the edges of the motherboard. Some of these larger coolers with 120mm/140mm fans tend to offset away from the CPU socket which may lead to case compatibility issues.
Also recently did a nice build with
@Legion using the Scythe Big Shuriken 3 and swapping the fan out for a full 25mm thick fan:
Other coolers to consider would be the
BeQuiet Shadow Rock TF2, which sits at 130mm tall, but is very wide and so you may have sideways compatibility problems:
Alternatively there is the smaller
BeQuiet Shadow Rock LP which is rated for 130W TDP and should provide better compatibility. But again, even this cooler can overhang with certain socket locations:
There is also the
Thermalright AXP200 Muscle, which is rated for 180W TDP, but due to its 140mm fan you may get compatibility issues depending on motherboard socket location.
The great thing about using top down coolers is you can swap out the fan for a fancy RGB one (if that's your thing) in combination with a top window panel:
If anybody has any experience of good top down coolers under 135mm in height that have good ITX motherboard compatibility, please share your thoughts, thank you!