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A personal computer that resides in one location with its core components inside a case separate to third-party peripherals required for operation, such as a mouse, keyboard, and monitor.

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My PC is randomly shutting down. Mostly when playing games.

I have a about 7 years old Win 8.1 64bitGaming PC

With a Asus H81M-Plus Motherboard

Intel I5 4460

Gygabyte Geforce GTX 750 TI

8 Gig of ram.

Some time Ago I cleaned my PC meaning getting the dust out of the fans and for that I did removed the Grafics card. Then the PC was working just fine for some time.

But after a while the PC would just go out and on again.

I can do “normal” stuff just fine. But when playing games it happens.

Before the shut down the sound will get distorted. Then the screen will get black and like a second later the pc goes down and on again.

At first I thought it is the PSU so I got a new one but that did not help.

All the fans are running and my pc shows 30-35°C on the CPU temp. I don’t have any way to measure the Grafics card temp though.

I used a tool called “intel processor diagnostic tool” that is supposed to show CPU failure but that Program said that pretty much all is ok.

Thought My guess at this point is that it is the CPU because I can play games like (classic) WOW relatively fine as long as I don’t run into a major city or run any other programs parallel. Other games did also work fine. However running an emulator (that does not use the grafics card but only uses CPU) shuts down the PC pretty fast. Also Phantasy star online 2 shut it down so fast I could not even get through the character creation.

My other guess is that the Motherboard is maybe damaged. Because the sound issues makes me think there is something wrong there. But I am not sure.

Unfortunately due do covid my financials got hit pretty hard. Buying the new PSU was already taxing for me. And I can’t afford to just randomly buy CPUs and Motherboards so I need fix it with my next purchase.

So if anyone can help me figure out where exactly the problem could be, I would be very than full.

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Hi @tartaros ,

Check in Event Viewer for any Critical, Error or Warning events that may be logged at the time of shutdown to see if they give any clues as to what is happening.

Use the Event ID and Source information to search online for what the cause may be if there are a lot of the same events.

To get to Event Viewer in Win 8.1 right click on the Windows Start button > Control, Panel > System & security > Administrative Tools > double click on Event viewer.

Perhaps also download a free standalone memory test program load it to a USB flashdrive and then boot from the USB drive to test the ram, just to eliminate it from the mix. This way Windows is not loaded.

Just verifying that the new PSU is≥450W as this is the minimum requirement for the GPU?


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If you are having the problem that your computer turns off while playing games, you have come to the right place. Don't worry, you are not alone. The problem can be caused by different issues. There are therefore several methods to remedy this. All methods apply to Windows 10, 7, 8.1, and 8.


Pc Overheating

PSU Issue

Virus or malware

Driver problem

Other hardware issues

The PSU refers to the power supply unit. The component supplies power to the computer. Most of the time, when a computer shuts down unexpectedly while playing games, it's the power supply.

We will normally ignore the power supply unit, but it is an important component that provides stable and continuous power for all computer equipment such as processors, memory, and hard drives. When the power supply fails to provide stable power or is insufficient, your computer may not operate normally and even damage the hardware.

How to check your power supply

The easiest way is to try a different power supply on your computer and see the result.

Or you can test it with a multimeter/power supply tester.

When you are sure it was the power supply, change it and everything is working again.

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