Troubleshooting a Recurring PC Shutdown Issue: A User’s Experience

In today’s digital world, encountering technical difficulties with your computer can be both frustrating and perplexing. One user recently shared their struggle with an unusual problem where their PC randomly shuts down and then restarts, often leaving them puzzled about the root cause. Here’s a deeper look into the issue and the steps taken to resolve it.

The Problem

About three days ago, I began experiencing a troubling issue with my computer. Out of the blue, it started shutting down and restarting without the usual Windows reboot screen. Instead, I was greeted with a blank screen, similar to when the system is powered off completely. This inconvenience typically occurred shortly after booting up — within ten minutes, though occasionally it took longer, up to an hour.

When I tried to turn the PC back on by pressing the power button, it often remained unresponsive for several seconds to even minutes. To my surprise, it would eventually power on by itself without any input from me.

Initial Diagnoses

Concerned, I examined the situation further. Using HWMonitor, I checked the system temperatures and found them within normal ranges. All the fans were operational, indicating that cooling was not an immediate concern.

With these observations in mind, I suspected that the issue could stem from a malfunctioning power button in my case or a possible fault in the power supply unit (PSU). Given the seemingly random nature of the shutdowns, I leaned more towards the latter option being less likely.

System Specifications

For reference, my PC is now approaching its five-year mark and has never been overclocked. Here are the main specifications:

• CPU: Intel i5 4690K
• GPU: ASUS ROG STRIX GTX 970
• Motherboard: MSI Z97 PC Mate
• Cooler: NZXT Kraken x61
• Power Supply: Seasonic M12II Evo 520W
• RAM: 4×4 GB HyperX DDR3 @ 1866MHz
• SSD: Kingston 250GB
• HDD: 1TB WD Blue

Seeking Help

I reached out to the Reddit community for advice, hoping to pinpoint the issue. Many people responded with their experiences and insights, which I greatly appreciated. If you’re dealing with similar symptoms or have suggestions to offer, your input would be invaluable.

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