I recently upgraded my GPU from a GTX 1080 Ti to an RX 9070 (non-XT). I was expecting lower temperatures since the TDP is lower, but after the upgrade, my CPU temperature has skyrocketed to around 95°C while my GPU is running in the 60s. I haven't changed anything else in my setup; previously, my CPU was at 61°C while gaming with the old GPU. My case isn't too cramped, and I have a Corsair water cooler with the radiator behind the front case fans. Is this high CPU temperature just because I'm no longer bottlenecked by the GPU? Could there be an issue with my cooling system? Are there ways to reduce CPU performance to keep temperatures under control?
5 Answers
When you upgraded to a more powerful GPU, it might have allowed your CPU to run at higher clock speeds, causing it to heat up more. This is normal, but 95°C is pretty extreme! You might want to check if your CPU cooler is working properly and consider reapplying thermal paste. Keeping your case clean can also improve airflow. Make sure your fans and radiator are all functioning as they should!
It's likely a combination of the new GPU demanding more from the CPU and possibly outdated cooling. Reapplying the thermal paste and double-checking the pump's function on your liquid cooler could make a huge difference. Also consider checking reviews or forums for your specific cooler to see how it performs under load with similar setups—there might be tips to optimize it directly!
You might still have an auto-overclock option enabled in your BIOS, causing the CPU to run at higher voltages and temperatures. Try disabling that, and set some fan curves for your radiator to help cool things down. Keeping the CPU cool is super crucial!
Undervolting the CPU can also help. There's usually a setting in the BIOS for that, so you could reduce the voltage a little to lower those temps.
It sounds like your new GPU is offloading more work onto your CPU, hence the increase in temperature. Also, if your cooler is as old as the CPU, it might be time for a maintenance check—maybe the pump is failing or the thermal paste has dried out over time. A good clean-up and possibly a repaste would do wonders!
Make sure you're not just having airflow issues. Sometimes the fans can get blocked or there's not enough intake air. Your new GPU might be blowing hot air around in the case, which can increase CPU temperatures too. A good case clean and repositioning your fans might help!
Yeah, I noticed that swift airflow can really make a difference! Did you check if the pump on your cooler is still running? That can affect everything.
That's a good point. Is there a way to underclock or reduce the performance of the CPU? That could help manage the heat.