My G9 is hot... like 115F (47C) on the outside of the case. That's a lot of heat for a 6w CPU (N150).
Anyone else having this problem? Just unboxed it Friday and put 2x Kingston 1TB NVMes in it. Stock Ubuntu OS, just patched. Haven't even created a user.. Haven't formatted the NVMes or created a pool or anything.
this is probably the nvme disks getting hot and not the cpu.
do the nvmes have a heatsink?
@glennwil72
As I also think that the SSD could cause this temperature, could you install the trial version of this software to confirm this supposition ?
Hi. Temperature is a big problem with the G9. I tried many different options, but I now have it running at much lower temperatures. In the BIOS you will find the fan settings #1 & #2, which I take to be for the CPU and maybe #2 for the two little fans on the side of the drive bay. I changed all the fan settings to kick in at 30C, so the highest fan setting kicks in almost straight away. This keeps all the tempertures of the 4 SSDs at +/- 45C and the CPU at 40C. This is with Truenas Scale 25.04 running and 4 Apps all running, Plex, Paperless-ngx, Syncthing and Homebox. Obviously, the G9 is no longer inaudible, it now makes a bit of fan noise, but it's not too loud, and it has solved the heat problem for me.
I forgot to mention that I'm running 4 x 1TB Crucial P310 SSDs. They are PCIe Gen4.
There is an interesting YouTube video about the heat issues of the G9 by Jeff Geerling. It's titled "I fixed the perfect Mini NAS!" He posted it yesterday 27/04/2025. I've also taken mine apart a few times, trying to find different solutions to address the heat issue, but in the end, increasing the fan speed (and the noise a bit), has proven to work fine.
I would like to know from GMKTec whether they could design a better case for the G9 with much better cooling for the SSD bay. If they could upgrade the G9 with better cooling, I would be happy to purchase a new case from them to solve the heat issue. Hopefully, someone from GMKTec will respond.
