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Computer shut down, what is the cause?


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#1 Pat(rick)

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Posted 15 April 2017 - 10:54 PM

Hello,

 

I've a Desktop computer for almost 3 years. The current OS is Windows 10.

 

I have the following problems that start to become more frequent:

- My computer shut down all of a sudden.

- Sometime, before it shut down randomly, my screen is flicking to a black screen.

- Sometime, I use my computer for a whole day and nothing is happening. No Shut down.

- There are some few days my computer can't last over 1 or 2 hours before being shut down.

 

When I try to turn it on, the computer runs for a few seconds and then it turn off. After that, it turns on again BUT this time, I didn't press the button to turn on. It automatically turn on by itself. Then after a few seconds, it turns off. Then on, then off...

 

Even if I put my computer in sleep mode (or stand by), soon or later, it will shut down.

 

I have to let my computer off (without unplugging the power supply) for 15 minutes or more to be able to use it.

 

It feels like my desktop computer is running out of electricity or "battery". What could be the causes?



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#2 bwv848

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Posted 17 April 2017 - 01:40 PM

Please follow these BSOD posting instructions and attach the requested files in your next reply. The logs are still useful, even if you've not been experiencing any BSODs.

 

Also, please publish a snapshot with Speccy:

 

:step1: Speccy by Piriform

  • Download and save Speccy from here.
  • Navigate to the directory in which you saved the ZIP file.
  • Right-click on the downloaded ZIP file, click Extract all, taking note of where the files will be extracted, and then hit Extract.
  • Open up the extracted folder, right-click on Speccy64.exe (or Speccy.exe, if your system is 32-bit), and select Run as administrator. Please accept any User Account Control prompts.
  • After waiting a while, click File, then Publish Snapshot.
  • Hit Yes to the Publish Snapshot dialog, then click Copy to Clipboard. Paste the URL in your next reply.


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#3 Javapiet

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Posted 17 April 2017 - 02:42 PM

it can be a heat problem

check fans if they turn or maybe they are full of dust.

 

or it can be power supply problem

try another powersupply

 

or it can be a motherboard problem

look for leaking or bold capacitors



#4 Pat(rick)

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Posted 17 April 2017 - 10:35 PM

I also suspected 3 problems, it might be the heat, power supply or my video card, but I wasn't sure which one is the cause.

 

Another behavior I forgot to mention: When I shut down my computer (not standby/sleep), after many minutes or a few hours, my computer turns on by itself.

 

In this post, I will upload my logs and the Speccy link.

 

http://speccy.piriform.com/results/IQlNJOyrpOm2z0e0RFOk8YG

Attached Files


Edited by Pat(rick), 18 April 2017 - 12:20 AM.


#5 bwv848

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Posted 18 April 2017 - 09:05 AM

The CPU temperature is 74°C, which is a little too high for my liking. Is this an OEM system? Run Prime95, how does the computer behave (details in the link)?

 

Will you please run MemTest86 for a minimum of eight passes? Here's a good guide if you need help. Also, please run Seagate SeaTools for Windows. Be sure to test all your drives with the S.M.A.R.T. and Long Generic tests.


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#6 Pat(rick)

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Posted 18 April 2017 - 10:06 AM

My computer originally came with Windows 8.1, then I upgraded it to Windows 10 for free a few years ago. Its manufacturer is HP.

I recheck my computer and it's retail, not OEM. (I use the command slmgr /dlv in command prompt)

 

I ran Prime95 for a few minutes, I heard my fan is speeding up, I check the CPU temp in speccy and it reaches over 100°C so I stop Prime95.

 

I didn't run MemTest86 and Seagate Seatools yet because I'm afraid my computer might shutdown at any moment.

 

For now, should I apply a thermal paste on the cpu?


Edited by Pat(rick), 18 April 2017 - 10:15 AM.


#7 bwv848

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Posted 18 April 2017 - 10:15 AM

Yes, you have a cooling problem. Clean out the case with compressed air and put on new thermal paste.


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#8 Pat(rick)

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Posted 18 April 2017 - 11:16 PM

I put on the processor a pea size of thermal paste. My CPU temperature is sometime over 60°C and sometime, under 60°C. Did I put on enough paste?


Edited by Pat(rick), 18 April 2017 - 11:22 PM.


#9 bwv848

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Posted 19 April 2017 - 09:59 AM

Don't overdo the thermal paste — it may lead to new problems. Did you clean out the case, the fans, etc. as I requested? :) BTW, are you overclocking... if so please stop.

 

Regards,

bwv848


Edited by bwv848, 19 April 2017 - 10:00 AM.

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#10 Pat(rick)

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Posted 19 April 2017 - 10:33 AM

Yes I did clean out the fans and the case. I stopped Prime95. My CPU is in the range of 55°C to 75°C

 

If I want to reapply or add a tiny little bit more the thermal paste, do I have to remove and clean the current thermal paste?

 

Edit: omg, my computer still shut down randomly. I put my computer in sleep mode and then, it shut down.

 

Can a computer overheat when in sleep mode?


Edited by Pat(rick), 19 April 2017 - 11:14 AM.


#11 bwv848

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Posted 19 April 2017 - 06:15 PM

Does the computer shut down in the BIOS setup? If it does, then it has to be a hardware problem. Shutting down while sleeping is unusual... do you have Hybrid Sleep enabled?

Regards,
bwv848


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#12 Pat(rick)

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Posted 19 April 2017 - 10:48 PM

I've not touch anything related to the Sleep since the purchase of the desktop computer. I check and Allow hybrid sleep Settings is set at "On". Do I turn it off?

 

Also, isn't it unusual that before i went sleep, i shut down the computer, then it suddenly turns on by itself overnight?

 

I didn't try to see if computer is going to shut down in the BIOS setup. It's hard to expect when it's going to shut down. It's random.



#13 bwv848

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Posted 20 April 2017 - 08:52 AM

I've never heard of a computer turning on by itself, but if it truly does, then it must be a PSU problem. Can you send me a picture of the PSU voltages in the BIOS?


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#14 Pat(rick)

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Posted 20 April 2017 - 11:52 AM

How do I access the BIOS?

When I try, it got me to the UEFI thing.

 

So far, since I applied the thermal paste, I notice there are less shutdown



#15 bwv848

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Posted 20 April 2017 - 11:57 AM

Perhaps it's the "UEFI thing" you're talking about?


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