Games experience crashes with error code 0xc0000005
Games experience crashes with error code 0xc0000005
I've adjusted my CPU's speed or voltage and performed multiple stress tests for extended periods without issues. However, some games began to crash with error 0xc0000005. The event viewer doesn't show any WHEA errors, so I'm unsure about the core crashes or hardware problems. It might be connected to the CPU overclocking or UV settings. With XMP profiles enabled, this seems possible after making changes to the CPU. Could games crash due to OC during long stress tests?
When sharing on this forum, make sure to provide complete system details, such as overclocks and manual voltages. Stress tests are synthetic and don't fully represent real-world conditions. They involve many activities like loading textures, reading/writing from storage, accessing RAM cache, and CPU-to-GPU data processing. Does the problem persist without overclocking? If not, then it's likely the overclocking is the cause. I might suggest increasing the voltage slightly—have you possibly undervolted your system? Without knowing your specs, I can't offer much guidance.
Sorry, my specifications are as follows:
Processor – AMD Ryzen 9 5900x
Mainboard – Asus Strix X570-F Gaming
RAM – Corsair Vengeance LPX 64 GB (2 x 32 GB) 3200 CL16
Cooler – be quiet! Dark Rock Pro 4
Power supply – Antec HCG650 Gold
I apply the PBO Curve Optimizer and lower all cores by 25 degrees, reducing PPT to 110 to prevent excessive overclocking. This adjustment helps keep CPU temperature below 80°C during gaming, which is acceptable but preferred.
Regarding core crashes, I don’t see any specific errors in the Event Viewer except for this warning.
Consider lowering the Curve Optimizer undervolt value for stability. Instead of cutting the PPT limit—which reduces performance even at temperatures well under 80°C—adjust the platform thermal limit to match the 80°C threshold. This allows the processor to reach the fuzed power boundary during short periods when temperatures stay below that point, which is especially useful for gaming. That cooler looks decent... how are your system's cooling conditions? If the case fans increase alongside the GPU as it runs, it mainly just adds heat to the CPU without much benefit. I assume your GPU performs comparably to the rest of your hardware, and a modern one could handle the extra heat like a room heater. I’d expect temperatures in the mid-70s during gaming unless you’re doing manual overclocking.
My GPU model is Gigabyte RTX 2070 Windforce and the case is Antec P110 Silent. During Cinebench, the CPU temperature stays between 68-73°C. Gaming increases the CPU heat, which seems connected to the GPU warming up through the cooler. The case likely isn’t very ventilated because it’s silent, but all fans are present. It rarely hits 85°C in every game, only occasionally...
I’m not aiming for overclocking. The stock CPU performs well. I reduced the PPT to control the CPU’s own overclocking since the GPU has more headroom due to its UV. My tests show a strong link between power use and temperature—higher PPT means higher temps. I haven’t noticed any situations where lowering PPT restricts processor performance when it was cool. 😊
Raising the PPT again would trigger CPU overclocking and increase voltage. Higher clock speeds require much higher voltage (exponential relationship), so I prefer keeping voltage stable even if temperatures rise, to prolong the GPU’s lifespan as much as possible.
Well... there are a couple of points to consider. First, try adjusting the Eco-Mode settings. It significantly improves lowering your processor's TDP, allowing it to run cooler while maintaining stability through consistent compatibility with other configurations.
But more importantly, just keep it as it is. AMD engineers have invested countless hours in this chip, ensuring it performs reliably with standard settings. They’ve placed a multi-billion dollar investment into its success by producing millions of units designed this way. Rely on them and stick to the default configuration—it’s built to endure at least 30 years, far surpassing any current relevance in technology. By then, we’ll have advanced features like 3D holographic gaming with full sensory feedback and AI NPCs that mimic human intelligence.
It's accurate, but perhaps my cooling system isn't powerful enough. It can hit the temperature limit, so I'm considering adding a buffer. Also, lower voltage is better.
The ECO setting is too weak, it significantly lowers CPU performance compared to UV. I lowered UV to 20 instead of 25, and the games are now much more stable. This keeps the CPU temperature steady below 80°C without sacrificing too much speed.