"This is the second time I bought the CI337 and the second time I am returning it.
I am currently running on a Zotac CI327 and thought this would be the perfect upgrade for my home server. I've run it for about 8 years now on Ubuntu 16, 18, and now Ubuntu 22 All I have to do is swap out the SATA SSD to the new unit and run.
The first time was from NewEgg. That unit worked for about 15 minutes, then crashed. It booted a few more times, but would crash in under 5 minutes. Then I couldn't even get it to POST to go into the BIOS.
This time, I bought it from Amazon. I even bought memory from the official list of tested RAM listed in the Zotac support page to give it the best chance at stability. (There's a file in the download section that lists them. I bought the Crucial RAM 16GB DDR5 4800MHz CL40 Laptop Memory CT16G48C40S5 from Amazon.
I had the same sort of problems with it crashing/locking up in under 15 minutes, but this time I could always get into the BIOS, so I wasn't sunk.
To give it the best chance possible, I installed a new copy of Ubuntu 24.04 on a new SSD. Then I installed BOINC and set it working on tasks. It ran at full load for 1 hour and 43 minutes before the screen went blank and it turned off with a red power LED."
Source: Amazon