My computer shuts down randomly

April 14, 2016 at 02:28:21
Specs: Windows 10
My PC shuts down (without any blue screen etc.) and instantly turns on.

I've checked CPU Temperature and it is about 45 degrees. My friend told me to change DRAM Voltage, so I've did that. I have a Good Ram 8GB Kit DDR3 CL9 so I've changed it to 1.5V, but it didn't worked. I've tried 1.55V, 1.35V and nothing. I've also changed DRAM Frequency to 1600MHz, and again nothing.

I think it's something about temperature or RAM because it happens more often when i play games.

BTW.
It happens more often since I've upgraded to Windows 10

My PC:
CPU: Intel Core i5-4690K CPU @ 3.50GHz
Motherboard: MSI Z97 PC Mate (MS-7850)
Graphics: NVIDIA GeForce GTX 660Ti
RAM: 8GB Dual-Channel DDR3 @ 799MHz (Good Ram)

Operating System:
Windows 10 Home 64-bit


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#1
April 14, 2016 at 03:06:53
Run this, select sensors and give us the temperature readings which show against thermometer symbols:
http://www.hwinfo.com/

Always pop back and let us know the outcome - thanks


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#2
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#3
April 14, 2016 at 05:34:08
Nothing too worrying there except the 123 degrees in screenshot 2. I suspect that is a false reading (no sensor) but it would be interesting to see what others make of it.

Set your computer NOT to restart on failure, like this:
http://www.eightforums.com/tutorial...
Next time it fails it should produce a blue screen with an error message and some figures (the first set being most important). Let us know what it says and if a file is mentioned let us have the name of that too.

Always pop back and let us know the outcome - thanks

message edited by Derek


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Related Solutions

#4
April 14, 2016 at 06:00:04
So I've did what you said, but it's still restarting and there is no blue screen.

I really don't know...

message edited by Joker12QQ


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#5
April 14, 2016 at 07:24:26
What is critical CPU Temperature?
Because I've launched some games and MSI AfterBurner and it says 65 degrees!
I guess I'll have to upgrade my cooling system...

message edited by Joker12QQ


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#6
April 14, 2016 at 08:34:01
I didn't manage to unearth a critical temperature as such but from what I can see it should be OK at 75C:
http://www.digitalstorm.com/unlocke...

With the computer off, it might be worth cleaning the edge connectors on your RAM with a soft pencil eraser and then popping them in and out of their sockets a few times in case there is any socket oxide. I've known oxide cause a few issues. Same applies to any edge connectors, including graphics card and SATA HD power and signal.

Always pop back and let us know the outcome - thanks


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#7
April 14, 2016 at 13:29:25
Random reboots/shutdowns are often caused by the power supply. That's the one item that's not on your spec list. You should also disable the auto-restart feature. If the problem is software rather than hardware, the blue screen error message should help you to troubleshoot.

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#8
April 14, 2016 at 20:08:44
You have an i5 4690K (Devil's Canyon) and Z97 motherboard. The Z97 motherboards came out first before the release of the Devil's Canyon CPU's and there was initially some issues with the original BIOS that came with these early motherboards. If you have one of the early models you probably need to flash your BIOS with a later/latest BIOS available for the CPU. Check your board version number and your BIOS version and look up which BIOS was recommended for these CPU's to see if you have the right one. If not then get the latest one and see if that helps with your issue. I know this because I have the same CPU and a Gigabyte Z97 motherboard though I had initially an issue with the GTX750Ti (lower level than yours but a newer series that also came out after the release of the early BIOS) but there were warnings that to get the best out of the CPU, a BIOS upgrade was needed.

riider's note about the possible issue with the power supply has significant merit so please also post that information (brand and model number).

You have to be a little bit crazy to keep you from going insane.


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#9
April 21, 2016 at 20:11:05
Joker, post the exact model of the RAM. Also, is all the RAM the same?

Also post the voltage readings for 12V, 5V, 3.3V PSU rails. You can glean those from the utility posted above or in the BIOS screens.


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