I've built several ATX towers before, but I recently tried my hand at micro ITX with the Fractal Design Terra case, which I really like. I upgraded everything to NVMe drives, and now whenever I launch any game—no matter the title—my CPU temperature shoots up to nearly 90°C per core, while my GPU and SSDs climb over 60°C in just seconds.
Here are my specs:
- Intel Core i5-14600K (3.50 GHz)
- MSI MPG B760I EDGE WIFI
- Nvidia GeForce RTX 3060
- Samsung EVO 970 PCIe 4.0
- Crucial P3 PLUS PCIe 4.0
- Noctua NH-L9x65
I went with the Noctua cooler, thinking it might help with ventilation, and even removed the Crucial P3 NVMe to see if the lack of a heatsink was the issue, but that didn't help. I've updated all drivers and reapplied thermal paste to both the CPU and GPU, but the problem persists across all games, from classics like Half-Life 1 to newer titles like The Last of Us.
5 Answers
It sounds like the Noctua cooler you picked might just be underperforming for your CPU, especially in a small form factor case. You might want to consider undervolting your CPU to manage those temperatures better, or eventually swapping it out for a more powerful cooler if you're sticking with this build.
Low-profile coolers can really struggle with cooling power when not undervolted. While they’re great for space-saving, unless you're constrained on space, it could be worth considering a larger heatsink. This build is pretty high-power, and a more robust cooler would make a difference.
You may need to set a power limit for your CPU or undervolt it to avoid thermal throttling. The 14600K can draw quite a bit of power, especially under load, which might be too much for a smaller cooler to handle. Also, double check that your thermal paste is applied properly and covers the entire CPU surface area.
Don't forget about case fans! Even in a mesh case, proper airflow is key. You want the hot air expelled quickly and cooler air coming in to avoid heat buildup.
I see what you mean. I'll look into adding some case fans for better airflow.
Did you remember to remove the protective foil from your CPU cooler? I had a friend who forgot to do that and it caused overheating issues. Just a simple thing to double-check.
I actually checked that myself after you mentioned it, and I did remove it this time!
Yeah, I did switch to the Noctua after initially using a much smaller cooler, so that might be a good call.