Why Does My PC Crash at High CPU Usage and What Should I Upgrade?

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Asked By TechWizard42 On

I've been dealing with crashing issues on my prebuilt PC from 2020 whenever the CPU usage hits over 90%. After a lot of troubleshooting—like reinstalling Windows and reseating components—I found a workaround: lowering the Minimum/Maximum Processor Power State to 90%. This fix stopped the crashes, but now I'm looking to upgrade my CPU. I'm wondering if my current CPU is the main issue behind these crashes when exceeding 90%, or if it could be my power supply (PSU) or something else entirely. If the CPU is indeed the problem, that would mean an upgrade could solve the crashing and boost my performance. On the flip side, if it's the PSU, I'll have a different challenge ahead. Any insights would be super helpful!

2 Answers

Answered By CoderDude88 On

Definitely keep an eye on voltage supply to your CPU. If the motherboard isn't providing enough voltage, it could cause those crashes. You've noted that this issue predates your GPU upgrade, so it’s a solid theory that the CPU is struggling to keep up. Also, you've got a decent wattage from your PSU; just ensure it's of good quality. An upgrade could very well fix both performance and stability. Good luck!

Answered By GadgetGuru99 On

It sounds like your CPU might be the culprit, especially since the crashes happen even at idle. A weak power delivery from the motherboard could also lead to issues, but it’s less likely. By limiting the processor power, you've reduced the voltage it requires, which can help prevent crashes. If you're looking for a CPU to match your 6800 and stay within a 600W PSU, I'd recommend looking into some of the Ryzen 5 or even Ryzen 7 options—just make sure they're compatible with your motherboard's chipset!

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