I have a passive home-made heatsink but the cpu repeatedly hits 90 degrees and throttles.
Looking at the hardware description at Hardware Information | Radxa Docs I can’t find a fan connector.
Is is possible to attach a fan anyway?
Is there a recommended heatsink/fan to buy?
You can hook a 5v fan to the headers - I use a 30mm fan and heatsink meant for some raspberry pi models. While there’s no dedicated fan headers, these fans are quiet enough that active speed control isn’t needed - I’ve switched to a metal case but this is the setup I’m using now - and that thread’s probably got some good options for you
You can tap power from the two pins I’ve squared in blue - I guess any pair of red and black headers would work to give you 5v
This is my solution:
It’s a “3007 cooling fan for the Raspberry CM5” (Compute Module 5) like this (look at your local dealer):
You can remove the retaining plates. Instead of the included thermal pads, I used self-adhesive thermal tape for mounting (and insulation) across the entire underside
The fan has four connection wires because it allows PWM control and the tapping of a “tachometer” signal. However, it is sufficient to simply connect the red and black wires to a +5V and a GND pin of the 40-pin GPIO header.
Although it runs at full speed constantly this way, it is still very quiet.
I can suggest Armor Case 7056A. 40°C idle temp on 23°C room temperatur… and it is super quiet and looks great!
really nice
you can’t buy this though, the link on aliexpress says it’s no longer available
I tried to buy it from another place on aliexpress, they actually never even sent it and aliexpress refunded me the money automatically it took so long with them not even sending it. I think there’s only like one link left and the price is stupid at this point.
If you click Buy button on product page you can also see Amazon link. It is listed as in stock for now.
I bought the copper fin with fan on the picture above by @Bob_Weurman and it does indeed work very well!
Even if the fan is constantly on, it does not matter because it is so quiet.
Aracetech has them in stock so I have one coming from them thanks.
It’s a good soc and the support is pretty good. I use the board as a router running virtual machines, so I need hyp/kvm support and it works well. I don’t super need any video or sound for this use but it seems like I had to disable at least one of them to get a latest 7.0x kernel to boot with kvm though maybe it’s a problem with the kernel I compiled, maybe the config or the firmware / systemd service is old on the arch linux image you provde (though thanks for that). I guess it would be awesome to have kvm + sunshine server working on this board on a recent kernel, absolutely killer then. It would be good to get a clean for the wireless on this board too, thigns seem kind of all over the place with it, i’d like to see just a tree of source I can copy into a kernel source, edit Makefile and Kconfig and then have it compile in but your source has all this debian stuff with patches, it would be great to get it going for inside a virtual machine as well, openwrt etc.
I’m also checking out if you guys get out an a733 image with kvm working at some point too. The old vendor u-boot has a ‘ CONFIG_CMD_SUNXI_BOOT_HYPER ‘ but I havent got around to really seeing if I can get a bin flashed to a card thats going to work
