What causes my PC to shut down due to overheating?

07-13-2016, 12:35 AM

Hello, I'm trying to understand why my gaming PC is experiencing thermal shutdowns during operation. I initially thought it was the CPU and purchased a Corsair AIO water cooler along with replacing the thermal paste, since the stock CPU fan was still present. However, the issue persists. The CPU idle temperatures remain between 30-35°C, while the GPU stays around 40°C, reaching a maximum of 65°C during intense gaming sessions. I've also replaced the thermal paste for the GPU, but the problem continues. Despite having a stock PSU with a calculated 401W draw from PCPartPicker, my system still draws 600W, which suggests another factor might be involved. My BIOS is up to date and optimal settings are configured, and I've cleaned the airflow around the PC without any noticeable improvement. Everything seems positioned properly at my desk, so poor airflow isn't the cause. I'm feeling quite confused and would appreciate any advice or troubleshooting steps to resolve this issue. Please feel free to ask if you need more details about my system specifications.

Frosting_Ice

07-13-2016, 12:35 AM #1

kelly1145
Junior Member

07-13-2016, 09:32 AM

The issue isn't related to heat dissipation, likely stems from the power supply unit. A reliable 600-watt unit should suffice, though many manufacturers cut corners over time. Identifying the precise PSU model would require more details.

kelly1145

07-13-2016, 09:32 AM #2

NicoPlaysYT
Senior Member

250

07-15-2016, 04:12 AM

I haven't needed to adjust it for years, but are your over-heating temperature limits in the BIOS set to low? This way the computer follows what the BIOS expects, even if you're just using the low setting.

NicoPlaysYT

07-15-2016, 04:12 AM #3

Uyumlu
Junior Member

07-16-2016, 10:32 PM

Review the brief updates about temporary surges on the web, where graphics cards consume double the energy for a brief moment; if the power supply can't cope, it may cause your setup to fail.

Uyumlu

07-16-2016, 10:32 PM #4

Review the brief updates about temporary surges on the web, where graphics cards consume double the energy for a brief moment; if the power supply can't cope, it may cause your setup to fail.

Sussu
Senior Member

708

07-17-2016, 08:34 PM

And even then, that's only if it genuinely reaches a quality 600W, not just some regulated standard that ends up being much lower—like 550W, 500W, or 450W PSUs in terms of +12V power—or worse.
Limited details result in incomplete answers.

Sussu

07-17-2016, 08:34 PM #5

Tlaltecuhtli
Junior Member

07-23-2016, 02:17 AM

I'm not certain about the precise model, but I understand it's around 600W. Would it be better to opt for a 750W instead? I've heard some people say CyberPower often provides low-quality power supplies.