Thermalright AXP-90 X47 Full Copper Low Profile CPU Air Cooler with Quite 90mm TL-9015R PWM Fan, 4 Heat Pipes, 47mm Height, for AMD AM4/Intel LGA 1150/1151/1155/1156/1200

I too had to use pliers to remove one of the hex nut, just like other user. It comes with poorly designed back plate and stanoff for AM4 motherboard. Also 4x standoff with rubber rings are not touching the motherboard as a stopper.That's why when you tighten the backplate screws AM4 motherboard bends with it. ( Some users also reported the exact same problem ). I might return the product.

The cooler was missing and the thermal paste was fully used, empty in the box.

Bought this for the fractal terra case alongside the ryzen 5700x, under full load it can keep it under 80c

So if you can only fit a 47mm cooler into your AM4 system then the full copper version is the best performing cooler I have found by far, but it does have some issues. 1. It is not a cheep cooler, and for the price the build quality is not as good as the much cheaper and thinner Noctua. 2. The fan is unnecessary loud, I used the Noctua fan that came with my previous cooler, which is much quieter and has no noticeable loss in performance. 3. Mounting the cooler is a bit of a pain. It takes some juggling to get the mounting pressure firm enough for best cooling without bending the motherboard like a banana. However in my ultra thin micro ATX case that sits under my TV this cooler is worth about 100 points in cinnebench over the Noctua due to reduced thermal throttling.

Thermalright AXP-90 X47 Full Copper CPU heatpipe type heatsink on an ASROCK DeskMeet B660: It just fit. It is quiet. The power supply fan has a louder whirr. At about 6 ft the combined noise added to ambient (55db) was only about 1db as measured by an instrument (not a phone) and most was from the PS fan. The DeskMeet 500W power supply fits over it with air flow from the outside, through the power supply and to the heatsink fan. A motherboard power cable seemed to need to go on top or close to one side of the heatsink and just had room for the wires. I didn't try orientation or even looking at the heatsink geometry to see if orientation matters. The two fan headers just had enough room to plug in a case fan and CPU fan. Other motherboards will have a different arrangement, of course. Used an i9-13900 65W CPU. Being for audio the CPU load is minimal. Wanted to see if more cores improve sound quality over an 8 core 16 thread PC with the same Win11 Pro OS - still evaluating. Sounds great regardless. Turned Turbo Boost off which took the edge off making it sound more relaxed (base speed 2GHz). Even with Turbo Boost enabled and as an audio player no real heat is produced so this unit keeps up fine. So, for more severe applications this review won't help with regard to CPU temperature but the heatsink has to be less than 54mm and this is around 32 to fit in a DeskMeet B660. Good low-profile heatsink.