Computer turning off by itself and then on just after

Aleksw · Jun 30, 2016

So for the last couple of weeks I've had this problem where my computer randomly shuts off and the starts again after a few seconds. My first thought was that there were too much dust in my computer, but that wasn't the case. After that I've tried about everything i can think of.. I've run a test on my harddrive, I upgraded my bios, upgraded to windows 10 and a little while after i formatted the drive and reinstalled windows 7, I've tried both of my ramsticks alone and I've also tried my gpu and psu in my friends computer. None of these gave any results.. The only things that has given some results is removing my gpu which got me a few days without problems, and i also changed my power cable which gave me a few days where my computer was completely fine even with my gpu. But now the problem has reoccured and im really lost.. So thats why I've come here.
Any help would be appreciated!

Specs:
Cpu: intel i5-4430
Motherboard: gigabyte B85M-D3H
Ram: Crucial BallistixSport 2x4Gb 1600 MHz
Gpu: evga GeForce GTX650 1Gb
Psu: Cooler Master G550M 550W
Harddrive: Western Digital Desktop Black 1TB

dirtbikeguy55 · Jun 30, 2016

I had the same issue and what fixed it for me temporarily was plugging my pc into a different outlet. That fixed it for about a month, then it started happening again so I just bought a new psu that was higher wattage and now I dont have the issue. Also make sure the 24 pin connector is plugged all the way into the motherboard.

theyeti87 · Jun 30, 2016

What are you doing on the computer when it suddenly reboots?

Chicano · Jun 30, 2016

To me it looks like the shutdowns are due to driver issues, and the restarts are due to BIOS settings in the Power Management section. Options for the BIOS to take after unexpected shutdown, are are Return to last state or Stay Off... The setting is named different on some BIOS, one I looked up names it: "AC Power Loss Restart"... so another possibiity could be an AC Power issue as in dirtbikeguy55's case.

For the shutdowns, update all your drivers and look for the Dump file with BluescreenView, and check for AC issues and test the PSU.
http://www.nirsoft.net/utils/blue_screen_view.html

You may not see a Blue Screen if the System Properties > Advanced > Startup and Recovery > option is set for Automatic Restart shutdown under system Failure or if it's due to power loss.

Aleksw · Jul 1, 2016

dirtbikeguy55 :

So do you think the PSU might be defect?

theyeti87 :

In the beginning I was usually playing games, but now it could happen at any time. While using chrome, while listening too music and so on. But it's at its worst when i am playing games, and can usually only play for about 5-10 minutes.

Chicano :

Yeah, so I also tried to update all of my drivers before I formatted it and that didn't give any results.
I will look at the other things you wrote later when I come home, thanks!

Aleksw · Jul 3, 2016

I tried to update most of my drivers and its still happening..
I downloaded BlueScreenView and after a crash yesterday i got a new crash in the program.

Do you have any idea what this could mean?

Chicano · Jul 3, 2016

NTOSKRNL.EXE.. When ever I've had this system file issue, it was either BAD ram or HDD.. most likely RAM. Run memtest and test each RAM module one by one on each RAM slot.

You said to have done this already but maybe not as adviced... read the Memory forum stickie and follow it to the letter, and leave memtest running as long as necessary. One other thing you can do is clean the RAM slots and module pins with cloth and pure alcohol. A cloth wrapped around a paper clip or appropriate object. a square, rectangle or round cutout piece of plastic of the appropriate thickness with a few drops of alcohol* can do a good job.

(*Enough alcohol to dampen the cloth but not drip or run).

Aleksw · Jul 8, 2016

Chicano :

So I've been running memtest a few more times. The first test i ran was with my usual setup with to ram sticks in their slots and that worked fine with 0 errors. Then I began running the test in different slots using only one stick. The first test was able to complete with 0 errors, but an hour in every test after that one the computer turned off. Even when i tried the same setup that worked in the beginning.
I got to borrow a ram stick from a friend and ran memtest, which completed without any errors. But when i tried to use my computer it turned off after a couple of hours. I also tried to use the SeaTools from SeaGate to test my hard drive and my computer turned off in the test with my ram and my friends ram.
I also got a new dump file in my BlueScreenViewer if that helps.

Chicano · Jul 8, 2016

Looks like driver issues and possibly bad HDD.
NTFS.SYS = File System driver
Dxgkrnl.sys = DirectX Graphics Kernel.

1. To check the HDD:
You said to have run a HDD test, but test such as the one you do with HD Tune are not conclusive... I've used it on failing HDDs with excelent results that were obviously wrong conclusions.
a) Run Hard Disk Sentinel. I've found it's results are more accurate.
b) Run a CHKDSK C: /R in a command prompt window or from the C: drive > Properties > Tools

2. Try restoring/replacing corrupted drivers from the Windows installer (DVD/USB)... start with SFC /Scannow typed in a Command Prompt window opened with "Run as Administrator".

3. If that doesn't solve it your next option is to reinstall Windows.

Check here for more relaed information.
Ntoskrl.exe reoccurring blue screen
http://www.tomshardware.com/forum/44450-63-ntoskrl-reoccurring-blue-screen

Aleksw · Jul 13, 2016

Chicano :

I've been trying to do the things you recommended,but in the middle of all of these my computer shut off... I managed to do a clean install with windows 7 and still nothing. I even tried to boot in safe mode, and its still happening. There are no extra entries in BlueScreenViewer after these shutdowns.
I also got to borrow a beep speaker that you connect to your motherboard to check for errors, and that only beep once which means that the system is normal...

Chicano · Jul 14, 2016

If it shuts off in the middle of every test, without leaving a dump file, it may be power is cutting off... when that happens, there isn't enough time to create a dump file. Power issues can cause all types of hardware and software issues since everything needs a steady flow of power... so that for one, may explain the BlueScreenViewer report on drivers and system file issues, and also the apparent RAM and /or HDD issues. So, if you haven't tested with a diferent PSU, that should be your next test.

If a different PSU doesn't solve a thing, you may want to try different RAM sticks, or at least test each RAM stick one at a time, on each slot.

And if you installed Wiondows 7 with issues, the HDD may be at least part of the cause.. If yu installed Win7 flawlessly, then the HDD may not have issues but if you can run Windows 7 and install programs, install Hard Disk Sentinel and see how it finds the HDD in performance, health and disk sectors.

Aleksw · Jul 17, 2016

I finally got to borrow a friends psu, a crucial TX 750W, and my computer worked fine. So it looks like it was my psu all this time. I also ran all the tests that crashed my computer and everything seemed fine.
Also I tried to run my psu on my friends computer and it seemed fine. Could that mean that there's something wrong with my motherboard?

Chicano · Jul 17, 2016

1. If your motherboard had something wrong, it would not improve with your friend's PSU..
2. Your friends computer may not be so power hungry to run ok with your PSU, or it may need time for issues to start showing-up
3. It's also possible your PSU had a connection deficiency: Maybe a lose connector, or the AC cable may have been lose on the PSU,

2MuchDrama · Jul 18, 2016

Chicano :

Usually random shut downs and bootup on start could = a bad PSU.

My friends PSU did it, it did it so much that the PSU is now dead. Needed a new one./

PSU's do it..

If it was a loose connection, why would it just shutdown and instantly boot back up? i don't think loose connections work like that. Sorry lol.

Aleksw · Jul 18, 2016

Chicano :

Yeah that makes sense. I talked to the store where i bought it and they are sending me a new one! Thank you so much for all the help! You are great!

Chicano · Jul 18, 2016

2MuchDrama :

If you mean the random shutdowns/bootups caused the PSU death(?).. you're wrong... the PSU was already dieing and causing those random sutdowns/startups.

Lose connections do cause issues that may include restarts... you may "think" but I know having experienced it myself a while back... pressing in the AC cable stopped it. Way I can explain it is: If the computer can't restart from this lose cable issue, it wouldn't even start in the first place. Another point you're missing is: system heat combined with a false contact can make it shutdown.. but as soon as the shutdown occurs, cooling takes effect and a restart begins. It's the same as a bad PSU that supplies insufficient wattage that causes restarts. All type of hardware and software issues can occur when a steady supply of current is not provided, that can include slower spinning CPU fan. So, sorry but you don't have the full grasp of things.

Chicano · Jul 18, 2016

Aleksw :

Glad to help Aleks.. thanks for the compliment.

Computer turning off by itself and then on just after

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