I've been having a frustrating issue with my Lenovo Thinkpad L14 Gen 3 where it randomly freezes or shuts down without warning. The screen goes black, and I can't move the mouse, forcing me to do a hard shutdown. This problem isn't consistent; it comes and goes, and there's no Blue Screen of Death (BSOD) to give me a clue. Sometimes it shows a quick error message before turning off, but it's too fast for me to catch what's being said.
This started becoming more frequent after I upgraded my RAM to 48GB and increased my storage to 1TB back in August. Initially, everything was fine for the first month, so I'm wondering if the upgrade could be related to this issue.
After the freezes or shutdowns, I checked the Event Viewer, which shows I have a Critical Kernel-Power warning, but there are no useful bug codes. I've done several troubleshooting steps, including scanning for malware, checking hardware with Lenovo Vantage, running system file checks, reinstalling drivers, and monitoring updates through the Reliability Monitor, but nothing seems to fix it.
Could anyone suggest any other steps I can take to diagnose or resolve this issue? Thanks in advance for your help!
3 Answers
The Critical Kernel-Power warning usually points to power issues, which could be hardware-related. If you've ruled out software problems through your diagnostics, consider checking your laptop’s power supply or battery. If it's an older battery, it might not be delivering enough power. Additionally, make sure that all your drivers are up-to-date and check for BIOS updates from Lenovo, which can sometimes fix such power-related issues.
It sounds like you've done quite a bit of troubleshooting already! Since you upgraded your RAM, it's worth checking if the new modules are compatible with each other and your motherboard. Sometimes, mismatched RAM can lead to instability. You might also want to run a memory test using Windows Memory Diagnostic to see if there are any errors related to your RAM. If everything checks out, consider monitoring the temperatures of your CPU and GPU to rule out overheating as a cause of the shutdowns.
If you're not finding any dump files in the Minidump folder, it might be worth adjusting your system settings to ensure that crash dumps are being saved. Try this guide to enable small memory dumps: [Ten Forums Guide](https://www.tenforums.com/tutorials/5560-configure-windows-10-create-minidump-bsod.html). This could provide you with more information to work with when diagnosing the problem.
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