GeeekPi Raspberry Pi Cooling Fan, Raspberry Pi ICE Tower Cooler, RGB Cooling Fan with Raspberry Pi Heatsink for Raspberry Pi 4 Model B & Raspberry Pi 3B+ & Raspberry Pi 3 Model B

I bought this based on recommendation from Alex Ellis blog. He rated several cooling options for the Pi 4. Ive found this to work very well for my use, which is for a small linux desktop in my workshop. Ive had cooling issues when I received my first Pi 4, but havent since I installed this fan.

Easy

Want to run a RaspberryPi 4b 8GB at turbo locked 2.3Ghz all-core clock, with the VideoCore VPU/GPU running at 750Mhz, 24/7 reliably? The IceTower will get it done, with headroom to spare. At the afore mentioned clocks, under full CPU and GPU torture-test loads, my temps never exceed 56 degrees. Under normal heavy loads (building a project, for example) it never even breaks 40 degrees, and idles at 30.

Construction of the cooler is great, comes with all mounting hardware and a nice acrylic base.

I have 2 of these now the second one I just got Feb 2021 came with a second non led fan that did not come with the first one, its nice to have a spare! I have not overclocked yet but these keep the temp below 38c.`1

My Pi machines (4) are mounted on C45 (35mm) DIN rails (no cases) using C45 circuit board adapters. This requires that the configuration must be assembled bottom (C45) to top (cooler). The TO220 heat sink needed to be cut down a bit and mounted to the RAM with 3M thermal tape (thicker than the provided thermal pads) to accommodate the difference in height. The configuration booted up ... first time, no debugging.

This little fan is really nice, makes your rasp pi look almost like a tiny desktop computer. I used thermal paste instead of the adhesive thing it came with. You can get some nice overclocking done with this on top, and keep your processor nice and chilly so it doesnt throttle.

I have a small pile of raspberry PI computers. I didn’t need to actively cool any of them until the Raspberry Pi 4 came out.

Works great nice on the eyes too

This took my Pi4b overclocked at 1750 from 53C to 24C. I added the extra fan on the other 5v connector and put it on the other side of the heatsink. I am also using thermal paste fyi.