Geekworm 12mm Thickness Aluminum Alloy Heatsink C235 for Raspberry Pi CM4

ICE! for your CM4. Almost. No matter what I throw at it on the CPU, it never cracks 55*. Ever. Never throttles, obviously. If it did, I'd throw a fan on it. Barely comes with any thermal pads and the one on the larger chip barely makes any contact. But it does make contact. I have an assortment of thermal pads so I threw them over the entire thing. You do have to screw this down a little bit for some of my larger pads to make good contact, but there's a trick to doing it without having the board bend like other people. First, my CM4 is mounted on a carrier board. There's a small gap between the underside of the CM4 and the carrier board. I filled in this gap with thermal pads of the correct height. This made it perfect! I can tighten it down with no bending. It's beautiful with this mod and runs ice cold. This cools better than a cheap one with a fan (when the fan is off), so I know there's headroom if I wanted to add another fan. would recommend if you're ok with taking a chance on having to order a thermal pad assortment. Otherwise, you probably have about a 75% chance of having it work out perfectly. It was worth the small risk for me since I had all the thermal pad assortments I could ever ask for!

This heatsink works surprisingly well. I had originally given a bad rating because the included installation bolts and nuts that were included weren’t a good fit — I couldn’t make a connection to the carrier board at all with the heatsink installed the way its pictured in the description. But after swapping out the 2.5mm bolts and nuts for something that was a better fit, this heat sink it working great. I’ve had a CM4 fitted with this and a 4010 Noctua fan on top with the CPU overclocked to 2147 MHz for 24 hours now, and it hasn’t broken 40°C.

I like the compactness of this heat sink, and the threaded holes for an optional fan, but DO NOT USE the pink thermal pads that come with this! The pads will WARP the CM4 module, which will compromise the mezzanine connectors. Instead, use thermal heat sink compound.

Quality product that gets the job done.

It's rather clearly just a cast part with next to no machining. Whole thing is powder coated, so for best results, file/sand/ect the coating off the SOC riser. The thermal pad that's supplied is actually not terrible, though I did switch out the SOC pad with artic silver after awhile. Average SOC temp with thermal pad was ~40°c (no heatsink it hovered around 60°c), with artic silver i haven't seen SOC temps exceed 38°c under decent load. Overall, great product and the tiny "cons" are well justified for the low cost.

Looks great, but will not work on big tree tech pad seven that was what I was hoping to use it for

As you can see in the picture, included hardware works and mounts up fine when using a carrier board. Maximum temp in a stress test stays below 50c. Get this heatsink if you want to keep your CM4 cool!

The heat sink is designed with slightly raised areas to meet the CPU and RAM chips on the CM4. Unfortunately, it doesn't quite fit on my CM4 (1GB Lite): the side with the CPU is slightly higher than the other. If left un-tightened, this allows the heat sink to "wobble." If you do tighten down the heatsink to the board, the board itself starts warping! (The thermal interface material doesn't change things, as it's a constant height for both chips.) Perhaps I just have an unusually high CM4 CPU. But I'm not bending my near-impossible-to-find CM4 just to make a cheap heat sink work.

Schnelle Lieferung

Came with hardware (4long bolts and 4nuts) and a tiny termal pad. Its mentionned for cm4 , but ive gotten it for my cm5. Without being active , on the cm5 it lacks a bit of metal (runs a bit above 70). But without fan i stacked one anodised 1/8 aluminium plate and a 2"x2" heatsinc on top and runs way cooler still without having a noisy fan involved.

Mon raspberry pi CM4 est maintenant parfaitement refroidi. Le dissipateur est suffisant pour ne pas avoir besoin de ventilateur. Cependant, si comme moi vous voulez jouer la carte de la sécurité, un ventilateur de 40mm pourra être mis au dessus en réalisant un support adéquat.

Encaja bien

Ottimo rapporto qualità prezzo