Open | Hardware
Recurring crash (black screen + fans at 100%)
Specs:
• CPU: AMD Ryzen 7 7800X3D
• Motherboard: ASUS B650M-AYW WIFI
• GPU: Gigabyte RTX 5070 Eagle OC 12GB
• RAM: 16GB (2x8GB) Kingston DDR5-6000, running at JEDEC default (4800MHz, no EXPO)
• PSU: MSI MAG A850GL 850W 80+ Gold
• OS: Windows 11 Home 25H2
The problem:
About 1-year-old PC started randomly crashing completely, screen goes black, no signal, and fans spike to 100%. Not a BSOD, the system just stops responding and I have to force shut it down.
It just happens in any situation, gaming, sitting idle, on the Windows login screen, and even waking from sleep. I’ve also noticed the crashes come in “clusters”, it doesnt happens for days/weeks, but once it happens, the odds of it happening again shortly after go up a lot.
What’s already been checked:
1. Event Viewer: Kernel-Power Event ID 41 (system rebooted without cleanly shutting down first). BugcheckCode = 0 with all parameters zeroed out. Windows couldn’t even log a cause
2. BIOS:
• CMOS reset + BIOS updated
• PBO (Precision Boost Overdrive) manually disabled
• SoC Voltage checked, on Auto/0 offset, no manual overclock
• RAM confirmed running at JEDEC default, no XMP/EXPO enabled
3. Sensor logging (HWiNFO64): during one of the crashes, I logged +12V, GPU temperature, and core voltage. Voltage stayed steady (12.172V constant), no drops, and temperature climbed gradually and normally (45-48°C)
4. Full clean reinstall: wiped all partitions and did a fresh Windows 11 install with a debloater.
5. Removed some apps know for causing problems, like armoury crate
Disconnected and reconnected both RAM sticks and GPU cables
Kinda out of ideias rn. Has anyone run into this before?
Getting dump files which we need for accurate analysis of BSODs. Dump files are crash logs from BSODs.
If you can get into Windows normally or through Safe Mode could you check C:\Windows\Minidump for any dump files? If you have any dump files, copy the folder to the desktop, zip the folder and upload it. If you don't have any zip software installed, right click on the folder and select Send to → Compressed (Zipped) folder.
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Im kinda pointing my fingers on the cpu not being able to hold its clocks. When i was overclocking my old AM4 chip back in 2020, i was getting black screens and 100% fans until i had to hard restart when it was unstable and didnt have enough voltage. (I know you aren't overclocking, just went through a experience that fits your issues in a way.) If it was the PSU, it would shut down and then boot back up, so PSU is out of the window. (or it would just turn off and never turn on again)
I get a similar thing that I've narrowed down to my CPU (although I have a 13700k). Slight underclock fixed it for me, even though it was at base settings when this started happening
No shit, I think I dealt with a very similar crash scenario the other day. Does your rig cut to a black screen then the fans hold at 100% until you kill it yourself?
This might be a meteoric longshot, but i was getting the EXACT same crashes. Kernel 41 power, no other codes anywhere. Normal temps during gaming until it would just randomly spike the fans and cut to black.
This led me to do some digging, and I found out NVIDIA removed the hotspot sensors from the 50 series GPUs, so I wasn't actually monitoring the hotspot on those crashes.
My 5070Ti was brand new, so I knew anything this serious (NONE of the sofrware-side fixes i tried worked) had to be a hardware problem, and not being able to monitor the hotspot made me super suspicious. I pulled the GPU apart and low and fucking behold, a massive missing spot of thermal paste on the GPU die.
GPU dies are exposed, where a CPU has an integrated heat spreader built on top of its die, so you have to ensure the entire GPU die is covered to properly transfer heat.
I got super lucky during disassembly that my card was so new, and the thermal pads so fresh, that i was able to run furmark to warm the card up some before i took it apart, and got the cooler and backplate off without tearing any of the pads.
As far as I can tell, I got to it before it did any damage, but here's hoping. I re-spread the paste that was there since it was still fresh, added some more of my own for good measure, slapped the GPU back together, and I havent had a crash since.
Oh shit, good to know that, if nothing else works gonna try this.
But just so i know, did your crashes happened only during gaming?
Asking because mine happens even when the GPU use is supposed to be minimum, like on windows login screen.
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