Hey everyone! I'm having trouble with my new PC build that's just a week old. It randomly reboots while I'm gaming, especially when running *The Witcher 3* at Ultra+ settings. During these reboots, the screen goes black and then shows the MSI logo, but there's no Blue Screen of Death (BSOD) appearing. Here are my specs: CPU: AMD Ryzen 5 7500F, GPU: NVIDIA RTX 5070 (MSI), Motherboard: MSI PRO A620M-B EVO (latest BIOS), RAM: 32GB DDR5 at 4800MHz (I disabled EXPO for testing), and I'm running Windows 11 Home fresh on a new SSD.
The main issues include sudden reboots under heavy graphics load (Event Viewer shows Kernel-Power 41) and frequent app crashes with an access violation error (0xc0000005) linked to ntdll.dll. I also heard a weird electrical sound when I plugged in the PSU after it had been off for a while.
I've performed several tests: a complete MemTest86 with no errors, an OCCT stress test that didn't cause any reboots (albeit with high CPU and GPU temps), a clean Windows install with the latest NVIDIA drivers, and I've made sure everything is well connected and within spec. I'm suspecting that the PSU might be having issues handling transient power spikes from the GPU, even though it passed some tests. Does anyone have insights with this motherboard or the 50-series graphics cards? What else can I check before reaching out for support? Thanks a bunch!
2 Answers
Downgrading your GPU drivers might help. I had similar issues, and rolling back to older versions like 591.86 or 591.74 worked wonders for stability in gaming environments. It could be worth a shot if you haven't tried it yet!
It sounds like a frustrating situation! Since you're not getting BSODs, it would be wise to check for dump files in C:WindowsMinidump just in case. If you can boot into Windows normally or in Safe Mode, look for those files. They could provide insights into what's going wrong. You can zip and upload them somewhere easy to access for further analysis. If you don't have any, you may need to tweak your settings to generate them properly for future errors.

Unfortunately, there are no dump files since there's no BSOD. The system shuts down without error messages, almost like a forced reboot.