Identify issues related to 13900K temperature management.
Identify issues related to 13900K temperature management.
Hey everyone, yesterday I upgraded my PC with an MSI MPG Carbon Wifi Z790 and a 13900K (swapping the 9900K). The issue is that idle temperatures sit between 55°-62°, and it gets extremely hot under any load. Even with the 90° temp cap set to 90° and a -0.075 undervolt, plus some Intel BIOS tweaks, it still locks at the limit during stress. The 253W limit is in place, but the thermal throttling remains a problem. The AIO has a solid 360mm setup with good paste application. Everything functions, but the real challenge is managing heat. Any advice?
I believe those temperatures are normal, as the CPU tends to get very hot. I’d switch to a higher-quality AIO such as the Arctic Liquid Freezer III Pro (360mm). Adjust pump and fan speeds accordingly, and ensure the radiator has fresh air by positioning it at the front of the case with intake fans.
I considered this scenario. It seems unlikely you'll regain the performance you had before. With your Corsair H150i RGB Elite, front-mounted radiator, and ample intake/exhaust, everything looks set for good cooling. Running the pump at max and ensuring a solid mount should help. As for gaming at high CPU temps, it’s a risk—consistently above 80°C could affect stability and performance.
During thermal throttling, the liquid inside the AIO stabilizes at a lower temperature after about 10 minutes. Edited August 2, 2025 by ArnoG typo
That's quite an impressive CPU! Did you make any updates to your BIOS?
What model are you using? The 13900K reaches its max at 100°C, so keeping it under 90°C is a bit tricky. Make sure you have the newest BIOS installed—it’s crucial for 13th and 14th generation Intel chips.
Reset all configurations back to factory settings. Update the BIOS to the most recent release. Turn off any undervolt adjustments or modifications you previously made. Apply these changes now. Proceed with caution in overclocking mode.
First row: Switch to advanced settings.
Second row: Set CPU cooler tuning to Intel default. Lower rows: Enable Advanced CPU Configuration, activate Intel Speed Shift Technology and Intel IST, and turn on Intel Turbo Boost. Disable Enhanced Turbo. In Advanced CPU Configuration, set CPU Light Load Control to Normal. Under it, choose CPU Light Load Mode 5. Return to the Overclocking settings menu.
In Advanced CPU Configuration, select CPU AVX control and open a sub-menu. Adjust the CPU ratio offset for AVX performance. If unstable, set the offset to -2 (adjust if needed). Temporarily disable XMP profile to simplify troubleshooting.
Open Windows and install Prime95, Cinebench R23, and HWInfo. Use CPU-Z for detailed benchmarking. Record your CPU scores before and after testing to compare results. Monitor temperatures and core frequency maxima via HWInfo.
If benchmarks meet expectations, run a 10-minute Prime95 Small FFT. If any worker fails, stop the test immediately, increase the AVX offset to the next value, or try a higher CPU Light Load setting.
Continue testing with these steps. There are many other parameters you can tweak, but I haven’t detailed them due to your experience level. Please ask if you need clarification. Save your HWInfo logs for future reference. You can boost data quality by increasing the sampling rate in HWInfo. Your AIO is functioning properly; the 13900K tends to overheat mainly because users misconfigure it. It rarely fails unless you ignore proper setup. I’ve been running a 13th-gen Intel CPU for over three years without issues, using a tower cooler with temps below AVX without offset and under 80°C.**