I'm in a bit of a jam here. My Intel 13600K CPU is running fine at 50°C when idle, but as soon as I start any game, it shoots up to a staggering 100°C. I've tried a lot to fix this issue, including undervolting, changing thermal paste, and tweaking BIOS settings, but nothing seems to work. When I initially built my PC, I had high temperatures as well, but was able to resolve it with a thermal bracket. Back then, it was sitting at 25°C idle and only 60-70°C during gaming.
Recently, I upgraded from an RTX 2060 to an RTX 5070Ti, and that's when I noticed the problem getting worse. My mini ITX case sits under my desk (similar to those in Optimum Tech's videos) and it's blowing out super hot air.
I know about the issues with 13th and 14th gen CPUs – I've had some crashes and blue screens myself, but they didn't seem severe enough to think they're linked to overheating. I updated my BIOS about a year ago, which appeared to fix the previous issues.
Could my CPU be damaged, requiring a warranty claim? Also, I'm curious if having a PCIe 3.0 case while using a PCIe 5.0 motherboard and GPU, along with the PSU connections, might affect this situation. Here's my setup:
- GPU: RTX 5070Ti
- CPU: 13600K
- Motherboard: Asus ROG B660-I Gaming
- RAM: Kingston DDR5 5200
- PSU: Cooler Master V750 SFX
Thanks for any insights!
3 Answers
If undervolting didn’t help at all, I’d suggest the cooler is the likely culprit. It’s not cutting it anymore, especially under the extra load from your new GPU.
First off, what CPU cooler are you using? Since you've upgraded to that RTX 5070Ti, it's likely putting more stress on your CPU than the old GPU did, which could explain the higher temperatures. If your cooler is installed correctly, the best option might be to upgrade it, especially since undervolting and changing thermal paste didn't resolve the issue. Also, keep in mind that the new GPU could be generating more heat, affecting the efficiency of your CPU cooler by blowing hot air into the case.
Hitting 100°C so suddenly with an AIO cooler usually points to issues with the cooler itself. Can you hear the pump running? Check for any leaks or if you can feel the coolant moving inside the AIO. Since you've reapplied thermal paste and checked fan operation, it may be a broken pump or an empty AIO. Your new GPU could be exhausting hot air into the AIO fans, but it's unlikely since your CPU was fine with the old RTX 2060.
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