Many builders point at the cooler first when temperatures climb into the high 80s Celsius. The cooler does move heat away from the processor, so it feels like a logical place to blame. In practice, the cooler is often not the main cause.
On recent Intel sockets such as LGA1700, the stock retention bracket can press unevenly on the CPU. This uneven pressure may bend the heat spreader just enough to create tiny gaps between the IHS and the coolers cold plate. When the contact surface is not flat, heat transfer drops sharply and even the best thermal paste cannot fill the void.
Other frequent contributors include:
- Improper mounting - screws too tight or too loose can warp the spreader.
- Insufficient or old thermal paste - a thin, even layer is needed for optimal conduction.
- Case airflow - restricted intake or exhaust can trap hot air around the radiator.
- BIOS voltage settings - running the CPU at higher than needed voltage raises heat output.
To troubleshoot, follow these steps:
- Remove the cooler and inspect the IHS for any visible curvature.
- Use a proper backplate or an aftermarket mounting kit designed for your socket. These often provide a more even pressure distribution.
- Clean off old paste with isopropyl alcohol and apply a pea‑sized amount of fresh, high‑quality paste.
- Reinstall the cooler, tightening screws in a diagonal pattern to keep pressure balanced.
- Check case fans - ensure there is clear intake at the front and exhaust at the rear/top.
- Enter the BIOS and verify that CPU core voltage (Vcore) is set to auto or the manufacturers recommended value.
After these adjustments, you should see a noticeable drop in temperature even with the same 360 mm AIO unit. If temps remain high, then the cooler itself may need replacement, but most of the time the issue lies in how the cooler interfaces with the processor.