I recently built a new setup with an i7-14700K on an NZXT N7 Z790 motherboard, using a DeepCool AK400 Digital cooler and stock Antec thermal paste. However, I'm noticing that my CPU idles at an alarmingly high temperature between 70 and 100°C. I've done some research but haven't found information on undervolting for this specific motherboard. Any suggestions on how I can reduce these temperatures?
3 Answers
That temperature range is really not normal for an i7-14700K. I had similar issues and my first step was to look in Task Manager. You want to ensure your CPU isn’t running at 100% usage when it's supposed to be idling. Additionally, if your power settings are set to high performance, try switching to a different power plan. Sometimes adjusting those settings can lead to a significant temperature drop. Also, remember that this CPU can generate 230+ watts, so if your cooler's on the weaker side, that could be a factor too. Hope this helps!
First off, that idle temperature is definitely concerning. Make sure your cooler is installed correctly—did you remove the plastic covering from the thermal paste? The DeepCool AK400 might be on the lighter side for this CPU, but I wouldn't expect those temps regardless. If everything’s installed right and you're still seeing those numbers, you might want to check your BIOS to ensure it's updated. Intel has addressed some related bugs in newer versions. Also, double-check if all fans are connected properly. Good luck!
If you've done the basic checks and your cooler is seated correctly, it might be time to change the thermal paste. I switched to a better paste and reduced my idle temps a lot. Also, if you're comfortable with it, consider delidding; it can dramatically lower temps. In general, just keep a close eye on your CPU usage in Task Manager—it should be near zero at idle. If nothing helps, maybe look into a more powerful cooling solution.
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