I just installed a Thermalright Peerless Assassin 120 SE cooler for my AMD Ryzen 7 5700X, but I'm still seeing temps hit 85°C while gaming. My previous cooler, a Chinese Snowman model, gave me the same results, so I was hoping for better cooling with the new one. My idle temps sit around 45-50°C, but even just opening a browser makes the temps spike to 75°C before they drop back down. I'm running at 1.25V and think I mounted the heatsink fairly evenly. My case airflow isn't great, but this seems too hot for my setup. Any insights on why this might be happening?
4 Answers
Have you tried adjusting the voltage using AMD Ryzen Master? Lowering it to around 1.15V or 1.10V while idle, and keeping 1.25V for gaming might help. I used to hit high temps with my 3700X during gaming, especially with demanding titles. Those spikes can happen with everyday tasks too.
Did you remember to remove the sticker on the cooler? That could significantly impact cooling. Also, how's your fan curve set up? Fans should ramp up to 100% when needed. You shouldn't be hitting 85°C while gaming—my Ryzen 9, which is more power-hungry, doesn't even reach that with a similar cooler.
It's not uncommon for temps to spike when you open a browser. It takes time for coolers to ramp up speed, and CPUs sometimes boost themselves for bursts. 85°C is somewhat high but not alarming. Have you tried gaming without the front panel of your case? That might improve airflow.
These AMD CPUs are designed to boost until they hit around 95°C before throttling. Have you checked your CPU clock speeds before and after switching coolers? Also, AMD CPUs can undervolt quite effectively, and doing that could keep your temps in check without losing performance.
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