I'm having a serious issue with my AMD Ryzen 5 5600X. I have a water cooling setup, but after turning my PC back on, the CPU temp shoots up to between 110°C to 115°C within just 15 minutes, causing the system to shut down immediately. This problem began after I rebooted my PC. Before that, the CPU was acting a bit strange but the temps weren't this high. I've noticed that the power usage spikes to 100% whenever I start the PC or open any applications or games. I've tried to unscrew the water cooling block for inspection, but it wouldn't come off, so I decided to step back from that for now. Any ideas on what could be going wrong?
4 Answers
Definitely inspect that water cooling block for dried thermal paste and make sure everything's properly seated. Also, check the age of your water cooler—if it's older, it may have failed and could be leaking, potentially damaging your components.
What motherboard are you using with your Ryzen? Sometimes compatibility can affect thermal performance.
First off, you might want to see if your PC can start in Safe Mode. That could help determine if the overheating persists with only essential services running. If it still heats up, check the water cooler's contact with the CPU; there might be an issue there.
It sounds like your thermal paste might have dried out, especially if you've handled the cooler recently. If the heatsink isn’t seated properly, that could be a big issue too.

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