Occasional Unexpected Shutdowns
Occasional Unexpected Shutdowns
Hey everyone, I’m trying to figure out what’s happening with my computer. It usually runs smoothly, but every now and then it shuts down a few times a week. I built it myself about nine months ago, and while the issue was there earlier, it’s getting more common lately. The temperatures on the motherboard stay well below 60°C, and I’ve checked event logs—no clear signs right before shutdowns. Recently, when I switch from a game to a browser with video playing, it powers off unexpectedly. My guess is that rapid changes in power draw might be causing the problem, possibly linked to the WH3 specs. I’m new to PC troubleshooting, so any tips would be super helpful. Thanks!
The fans continue to operate. During the blackscreen, the postcode remains visible briefly before resuming normal display. If this is due to power issues, replacing the PSU could be a good solution—around $130 for a 1000W unit would be reasonable.
I didn't notice the fans much. They tend to stay quiet and are covered by a thick, fine mesh, making it difficult to see if they're stopped unless you're directly watching them. When the post code appears on the MB's seven-segment display, it clears completely and restarts the system. No safety mode warnings or pop-ups appear.
As the problem keeps happening more often, I think it's likely a hardware concern. While you're still able to, I'd still attempt to eliminate software or driver issues first. Go back any drivers that were recently installed or updated, apply the latest Windows updates, or unplug any devices you recently connected. If after some time the computer still shuts down, then everything seems fine. But if the problem continues, it's time to consider a hardware fault.
1. Reset CMOS and run with default settings.
2. Disassemble completely, reconnect all cables, verify they're secure.
3. Re-seat RAM, try various slots or different modules.
4. Re-seat CPU/GPU connections.
5. Perform a bench test to check if the case might be the cause.
6. Swap out components one by one and experiment with combinations (if possible).
Each step helps identify if the issue lies in software, hardware, or both. If after step 5 the problem persists, consider ordering replacement parts. Initially, I'd start with the power supply unit, then move to the motherboard. It turned out the motherboard was the culprit, so maybe it's better not to invest in a new PSU just yet.
I'm checking drivers and updates now. If reseating parts becomes necessary during a holiday break, I'll need a well-equipped space. I ran test benches during assembly (attempting to follow a Linus video, probably). Right now I don't have the components, but I hope by Christmas 2024 I can fix it. Since the problem has been sporadic, I'm considering closing it while trying your fixes. If it reappears after applying solutions, I'll open a new thread. Thanks for the support and the Prime95 test—my room got hot, but it worked!