Hey everyone! I recently upgraded my CPU from a 5900X to a 9800X3D and switched out my cooler to a Deepcool Assassin IV. However, I'm hitting some really high temps of 96°C during benchmarks like Cinebench, shader compiling, and antivirus scans, which max out the CPU. When idling, my temps are around 37-40°C, and they go up to about 70°C during gaming. I didn't change many settings besides enabling EXPO and adjusting the fan curve, and I also removed the plastic sticker on the heatsink and reapplied thermal paste, but nothing seems to help! Any advice on why this is happening?
2 Answers
It sounds like your CPU is just doing its thing. But there are reports of the 9800X3D hitting those kinds of temps under full load, so running a -15 CO undervolt could help. My setup peaked around 85-86°C with similar settings, but I managed to reduce it significantly with undervolting.
That seems pretty high! It might be an airflow issue in your case. When I tested my 9800X3D with a Lian Li Hydroshift 360, I usually saw temps around 70-80°C even during stress tests. You should check the airflow setup—make sure you have enough intake and exhaust fans to keep things cool.
I doubt it's an airflow issue. I've got 3 intakes in the front and 2 exhaust fans in the Corsair 4000D case. Everything looks good on my end!