Solved Computer Shuts Down Randomly

June 6, 2017 at 05:40:38
Specs: Windows 10 Pro, 8GB 1600MHz DDR3
hi,
I started using my pc after about 3 months and I started to notice that it behaves wierdly. On the first day it started shutting down randomly. I figured this was an issue with the OS as when I was in the UEFI it didn't do anything wrong. So I reinstalled windows 10 and it worked fine for the following two days. But then when I tried to run the computer today it started to shut down, this time even in the UEFI. What should I do, I tested it with a spare motherboard, psu, Graphics Card and Storage Combo and the same problem persisted. What is wrong with my computer.!
Below are the specs of the system:-
Motherboard - Asus z97 Pro Gamer
RAM - 8GB Kingston 1600MHz DDR3
CPU - Intel Core i7 4790(Non "K")
GPU - MSI Geforce GTX 1080 Founders Edition
Storage - 1. 1TB WD Blue 7200RPM HDD
2. 1TB WD Blue 7200RPM HDD
3. Samsung 850 EVO 250GB SSD
PSU -Seasonic Eco 600W
Case - Cooler Master Scout II
(Upgrading to Corsair Crystal 460X)
There are no issues with thermals of the GPU, CPU, or the Motherboard as I have checked them multiple times even with stress tests on the GPU and CPU.
Please be kind enough to help with this issue.

message edited by SanudaRanawake


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✔ Best Answer
June 7, 2017 at 16:31:51
JohnW suggested running a Live Linux CD because if it runs without crashing off the CD then the problem is Windows or driver related. If it crashes still then it has to be hardware related.
Does it run in BIOS set up without crashing? This can be a tell tail as well.
Check all specs for memory in BIOS including (as mentioned) voltage for RAM (standard is 1.5V but many require 1.65V).
If you let it idle in BIOS set up does the temps rise steadily?
Try removing graphics card and running off onboard graphics to see if it crashes as well.

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



#1
June 6, 2017 at 15:06:23
Have you run a hard disk check? You could try chkdsk /f for starters:
https://windowsinstructed.com/run-c...

If you need to go further run the Seagate test:
http://www.seagate.com/gb/en/suppor...

Correct me if I'm wrong but from what you have said the HD is the only thing left that you haven't checked.

Always pop back and let us know the outcome - thanks


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#2
June 6, 2017 at 16:38:08
Check the voltage in BIOS to prove that the 12V, 5V, and 3.3V are all withing 5% of their nominal values.

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


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#3
June 6, 2017 at 19:47:07
Is this a self-build PC?
Check the temperature in BIOS and while running the OS.

https://www.hwinfo.com/download.php


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Related Solutions

#4
June 6, 2017 at 20:55:28
To the response-:
Have you run a hard disk check? You could try chkdsk /f for starters:
https://windowsinstructed.com/run-c...
If you need to go further run the Seagate test:
http://www.seagate.com/gb/en/suppor...
Correct me if I'm wrong but from what you have said the HD is the only thing left that you haven't checked.


I checked the Hard Disk also by simply unplugging it from the system(All my drives) and then just booting into the UEFI but still there was no change, the same shutting down happened randomly.

message edited by SanudaRanawake


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#5
June 6, 2017 at 20:58:09
Sounds like a power supply issue. Test the PSU and whatever's feeding the PSU.

How To Ask Questions The Smart Way


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#6
June 6, 2017 at 20:58:35
Dear Fingers,
I tried the monitoring of the voltages and here's what I found, -:
CPU Input Voltage - 1.760V
CPU Core Voltage - 1.131V
3.3V Voltage - 3.408V
5V Voltage - 5.040V
12V Voltage - 12.192V
Can someone please be kind enough to state if these values are within range.

message edited by SanudaRanawake


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#7
June 6, 2017 at 21:00:32
Dear Sluc,
I have no way of installing any of the programs you have suggested onto my system as it shuts down immediately and yes it is a self built pc.

message edited by SanudaRanawake


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#8
June 6, 2017 at 21:03:02
Dear Razor2.3,
I have checked the system using a different power supply and still the same issue persists. However still, the issue of having a faulty power supply seems to question me as the power supply used for testing was a not from a very reputable brand. The power supply used for testing was from a brand called Armageddon.
About the power delivery to the power supply I would definitely check. However I am pretty confident as the room I am in runs a separate router(24/7), a laptop charging(a few hours), and my PC.

message edited by SanudaRanawake


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#9
June 6, 2017 at 21:28:49
I have made newer observations regarding my PC, when the computer turned off on it's own today when I was monitoring for the voltages today, the keyboard suddenly started to flash it's LEDs. I noticed this later with all USB devices such as my headset and my phone where it's charging LED started switching on and off alternatively.
Please be kind enough to use this evidence in helping me as well.
P.S. Your help is highly valued.

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#10
June 7, 2017 at 01:21:51
Try a Linux live Cd & see if you still get the problems.

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#11
June 7, 2017 at 01:49:45
Dear Johnw,
Clearly that would be unnecessary as the os or boot drives are not the issue.
If you think otherwise then please care to reply.
Thank you for your help.

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#12
June 7, 2017 at 05:15:50
You might also have a short somewhere, or a faulty USB device. During testing, make sure you're using a known good keyboard and mouse without any other USB devices. Also, if you have USB connectors on the case, disconnect them from the motherboard. Finally, and this is very much a long shot, verify the motherboard isn't touching the case, no bare metal is touching the motherboard, and that the risers are matched up with the screw holes you're using to mount the motherboard.

How To Ask Questions The Smart Way


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#13
June 7, 2017 at 05:36:24
Dear Razor2.3,
Thank you for your response. I will surely confirm for such issues and let you know within 48hours about it. Thank you for your response. I highly value it.

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#14
June 7, 2017 at 08:47:04
Dear Razor2.3,
I checked them by running my rig out of the case and disconnecting all usb ports from the motherboard itself but the problem persists.

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#15
June 7, 2017 at 09:53:44
At this point, we're running out of things to check.

If you have a multimeter, you can try back probing the PSU connections while the rig's caseless and running. Black is ground, orange should be +3.135V to +3.465V, red and purple should be +4.75V to +5.25V, and yellow should be +11.40V to +12.60V.

If you have a cheap video card that doesn't require a direct connection from the PSU, try running with that.

Outside of that there are things that could be bad, but they usually just cause system crashing and not loss of power. Try reapplying the thermal compound between the heatsink and CPU. (Probably unnecessary if the thermals are good). Try running with one stick of known good RAM. (Also if your BIOS lets you specify memory voltage, double check to make sure the settings fall within your RAM's specifications.) Try having only your main OS hard drive powered and connected.

If none of those things help, it'd HAVE to be either the CPU, because it's fragile and core to the system; the motherboard, because it touches everything; the PSU, because it supplies everything with power; or the surge suppressor, 'cause the PSU has to get its power from somewhere.

Actually, if you have a spare surge suppressor, try using that for your PC. If not, try a different plug on the existing suppressor. It probably won't help, but you lose nothing by trying it.

How To Ask Questions The Smart Way

message edited by Razor2.3


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#16
June 7, 2017 at 16:31:51
✔ Best Answer
JohnW suggested running a Live Linux CD because if it runs without crashing off the CD then the problem is Windows or driver related. If it crashes still then it has to be hardware related.
Does it run in BIOS set up without crashing? This can be a tell tail as well.
Check all specs for memory in BIOS including (as mentioned) voltage for RAM (standard is 1.5V but many require 1.65V).
If you let it idle in BIOS set up does the temps rise steadily?
Try removing graphics card and running off onboard graphics to see if it crashes as well.

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


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#17
June 7, 2017 at 17:15:39
To quote the OP:
SanudaRanawake: But then when I tried to run the computer today it started to shut down, this time even in the UEFI.

How To Ask Questions The Smart Way


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#18
June 7, 2017 at 17:44:02
CPU Heatsink. Did you apply thermal grease using the exact method specified by the CPU manufacturer? Just wondered about rapid overheating.

Always pop back and let us know the outcome - thanks


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#19
June 7, 2017 at 23:30:03
Dear Razor2.3(Reg. #15),
I will definitely try out the method that you have stated. The only problem being that I have to wait till tomorrow to do so as my multi-meter is in a phone store that burrowed it from me all stores are closed today in Sri Lanka as today is a full moon day and in Sri Lanka all full moon days are national holidays.
Thank you for your response I highly value your effort in helping me solve this problem.

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#20
June 7, 2017 at 23:32:14
Dear Razor2.3(Reg. #15) and Fingers,
I the system using on-board graphics but the same problem persists.
Thank you for your efforts. I highly value it.

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#21
June 7, 2017 at 23:34:24
Dear Fingers,
The temperature when in the BIOS does not increase gradually but rather sits at around 27C when my room AC is on and around 40C when off. Also the system does shut down when in the BIOS. And I will definitely check for the RAM Voltages and let you know within a few hours.
Thank you for your efforts they are highly valued.

message edited by SanudaRanawake


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#22
June 7, 2017 at 23:39:39
Dear Derek,
The CPU heatsink and thermal paste is applied in the proper way and has been rechecked by me.
Thank you for your efforts.

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#23
June 8, 2017 at 00:05:31
Is the on-board GPU working?
Can boot without the GTX1080 en check if problem persist?

Do you have HDD with OS on?
Change or boot from the HDD.

message edited by sluc


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#24
June 8, 2017 at 01:39:52
Dear sluc,
I have tried both these methods and still the problem persists.
Thank you for your effort. I highly value it.

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#25
June 8, 2017 at 18:54:10
Have you tried to run with minimal hardware? Only SSD or HDD and one stick of memory, no overclocking.
Even disconnect HDD/SSD and use a stick/DVD with a live Linux OS on.

message edited by sluc


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#26
June 8, 2017 at 20:15:35
To restate:
Voltages within range
Temps are within range
Crashes with onboard graphics as well as graphics card
Crashes in BIOS

Still checking:
RAM voltage
Multi meter test of power supply
Minimal set up with Live Linux

Also need to check:
Is BIOS set as per RAM label for memory on all settings?
Is RAM on memory support list for motherboard? (fully manual setting on RAM may help if unsupported but may not).

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


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#27
June 8, 2017 at 22:21:34
Dear Sluc,
Yes I have.
Thank you for your effort.

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#28
June 8, 2017 at 22:24:30
Dear all,
The system just fixed itself. I don't know how but I adjusted the ram voltage to 1.65V and the problem persisted. Then I retried the system and it just stayed on for quite a while. Thank you all for helping and providing me with assistance.I highly value your efforts.

I hope that a community like you exist to help other people as well.


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#29
June 9, 2017 at 07:39:21
Very strange but thanks for letting us know and I hope it keeps behaving itself.

message edited by Derek


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#30
June 9, 2017 at 10:53:42
If it continues to work correctly and you did nothing else then it probably was the RAM voltage. The memory needed the extra voltage for it to run at the speed that it was set at or it was not stable. It is not unusual for memory of a certain era to come as DDR2 1600MHz on package but is only stable up to 1333MHz at 1.5V and requires 1.65V to run stable at 1600MHz. If you used the XMP settings option this should have been set by the RAM specs, if you set it manually and did not set the voltage then it was still at the default 1.5V.
Well, enjoy.

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


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#31
July 14, 2017 at 20:04:57
Hello everyone there is a new issue with my system, Please refer to https://www.computing.net/answers/h... if you are interested.
Thank you.

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