Often powered off the system unit. What's the problem?

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From 1 to 10 times a day turns off power to the system unit, that is just cut down everything in the system unit and monitor off. Connection with something else, for example, the workload of the system, I didn't notice. Seen in Windows and Ubuntu.


Is it possible in my description to say what is the reason?


As you see, if you just replace the power supply problem will go away?


Thank you for your attention. I hope to help.
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7 Answers

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Is it possible in my description to say what is the reason?
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Hard, to be honest) And the inside outwardly, everything is normal? Ogledalce there didn't fall off or something?
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There are two options:
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— Problems with cooling (dusty cooler CPU),
— Power issues (not enough voltage, try disabling extra devices).
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And check the USB-ports where broken and two contacts closes.
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once the connection with the load you are watching, here are the options:
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1) defective motherboard
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2) faulty RAM (Memtest86+ to help you)
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Check the CPU cooler... probably shuts off from overheating. Another possible problem in the power supply, if you have another power supply around, connect, and potestate day. It is advisable to check and outlet.
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The first thing you need to go into logs and see what's wrong. I had a similar situation for the following reasons
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Overheating * CPU (see the temperature in the load and without)
* Overheating of the GPU (see temperature)
* Dust created additional capacity on the motherboard to the housing (vacuum)
* Set on his head Nero Essential, one component of which (Gear something) horribly buggy, crashed and brought down the whole system. (remove garbage from the system)
* Excessive electrification of the body can also cause a reboot (remove the static plan)
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In every power supply provides protection, which instantly disables the power supply if there is insufficient power (1), either one of the output voltages out of range (2).*
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Most likely, the way it is.
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But it is necessary to exclude failures in the motherboard, and software shutdown.
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This requires a leash (e.g. twisted pair) to short the black and green wires in the connector of the power supply. Of course, that the connector needs to be enabled in the motherboard and the computer is not necessary to disassemble the components.
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After this operation, the motherboard and the program will not be able to turn off the power supply. And if the power supply still turned off, it will mean the cause: insufficient capacity of power supply (1), or a faulty PSU (2).
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Just keep in mind that there is a very small chance to mess up the computer. For example, the same static. If you are scared, it is better to trust the professionals.
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* The lack of capacity of the PSU, just appears and is detected by the power supply in the deviation of the output voltages from the norm.
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