Computer crashes, dont know reason

[rudolf]

Hi,

 

I have bought a computer with that build:

 

CPU: Intel - Core i7-7700K 4.2GHz Quad-Core Processor  ($328.89 @ OutletPC) 
CPU Cooler: Corsair - H115i 104.7 CFM Liquid CPU Cooler  ($119.99 @ Newegg) 
Motherboard: MSI - Z270 GAMING M7 ATX LGA1151 Motherboard  ($209.89 @ OutletPC) 
Memory: Corsair - Vengeance LED 32GB (2 x 16GB) DDR4-2666 Memory  ($254.99 @ Amazon) 
Storage: Samsung - 960 EVO 1TB M.2-2280 Solid State Drive  ($479.99 @ B&H) 
Video Card: MSI - GeForce GTX 1080 8GB GAMING X 8G Video Card  ($554.98 @ Newegg) 
Case: NZXT - Noctis 450 ATX Mid Tower Case  ($109.99 @ Newegg) 
Power Supply: Corsair - 1000W 80+ Platinum Certified Fully-Modular ATX Power Supply  ($184.99 @ Newegg) 
Monitor: Asus - ROG SWIFT PG348Q 34.0" 3440x1440 100Hz Monitor  ($1199.90 @ Amazon) 
Keyboard: Kingston - HyperX Alloy FPS Wired Standard Keyboard  ($96.43 @ NCIX US) 
Mouse: Razer - DeathAdder Chroma Wired Optical Mouse  ($49.98 @ B&H) 
 

everything works fine, except one problem. Sometimes my computer crashes without clear reason. First my monitor loses signal, then my system shuts down. After the system is shut down, it boots again and after a half second it shuts down again. I must disconnect the electricity cable from the case to break out the loop of booting and shut downs. I am scared that my system can get damage because of an not working component.

 

In most cases it happen when I play a game. I am not sure which component is defect.

 

After I have unplugged the energy cable and plugin again, I start the system and get the message that my bios settings are reset. I have changed just two things. First my case contains a fan hub working as NWM. My motherboard doesnt recognize it to be PWM and expects its DC. DC means for my hub that the fans run 100% all the time. So I manually set to NWM. The other option I have changed is the boot mode. I had legacy+uefi and I changed to only uefi because I dont have need for legacy stuff and work only with uefi.

 

I dont assume that these changes effects anything relating to my problem but I just tell you in the case.

 

Can someone give me advice how to investigate that problem? Unfortunately I dont have any other component twice I could replace easy. In the past I have used laptops so I dont own computer components anymore. I need to know which component is defect so I can send it back and get a correct working back.

[Billy_Mays]

Have you OC'ed at all?

[AvocadosGuac]

Probably a power supply issue. It could also be a power delivery issue(i.e your houses wiring).

[MaxBunny]

3 minutes ago, rudolf said:

Motherboard: MSI - Z270 GAMING M7 ATX LGA1151 Motherboard  ($209.89 @ OutletPC)
 

everything works fine, except one problem. Sometimes my computer crashes without clear reason. First my monitor loses signal, then my system shuts down. After the system is shut down, it boots again and after a half second it shuts down again. I must disconnect the electricity cable from the case to break out the loop of booting and shut downs.

 

After I have unplugged the energy cable and plugin again, I start the system and get the message that my bios settings are reset.

 These problems sound like a motherboard issue to me. If not that I'd look into a defective processor.

 

If it just shut off completely and then turned back on, it would be your power supply. If it was your graphics card you'd be getting errors like blue screens or screen freezing. Anything with a type of boot loop error is usually your motherboard though.

[AvocadosGuac]

12 minutes ago, MaxBunny said:

 These problems sound like a motherboard issue to me. If not that I'd look into a defective processor.

 

If it just shut off completely and then turned back on, it would be your power supply. If it was your graphics card you'd be getting errors like blue screens or screen freezing. Anything with a type of boot loop error is usually your motherboard though.

Ive seen similar to this.

 

A client brought in a pc that worked fine at our office, but at his house it didnt. The plug was overloaded and when he went to do anything stressful on the computer it crashed cause the PSU couldnt deliver enough power.

[rudolf]

2 hours ago, Billy_Mays said:

Have you OC'ed at all?

no

 

thanks for all your responses.

2 hours ago, Jrock said:

Probably a power supply issue. It could also be a power delivery issue(i.e your houses wiring).

yes maybe, I tried to check it. I have unplugged everything, and when the system booted I tried to look under the case where the psu fan is. It has only spinned at the boot time for a short time. After a second it stopped.

 

I know there is a method how to test psu: 

 

but I dont know if you get the same results if you boot your system normal. The videos tells that the fan should spin all the time but in my case it spinned only in the beginning of the system start. Is this the same?

Normally I would think that its a feature of the psu to spin only if a certain work load exceed to make it calm, because with my 1000W platinum the psu should be really strong.

 

To test the boot behavior I have booted the system several times. After canceling the test and booted again I have noticed that I got again the screen that my settings in the BIOS were reset. It means that the settings become reset if the system boot and shut down several times in a short time. It doesn't mean necessarily that the motherboard decovered bad settings and went back to the default.

 

 

 

Something else happen also. After I have started my computer today, I opened youtube video and the screen became frozen. I could move nothing and it continued after a short time. I was thinking, wtf, how a strong system like mine can be frozen after opening a youtube video. This shows like something is wrong. Is it the GPU?

 

I am a little bit desperate. Any ideas what I should do?

[ShinchanNL]

1 hour ago, rudolf said:

and when the system booted I tried to look under the case where the psu fan is. It has only spinned at the boot time for a short time. After a second it stopped.

Aren't psu fans supposed to be spinning all the time ? Sounds like your psu is overheating. Is it spinning when your completely booted in you OS ?

[rudolf]

I have checked now and they dont spin! My system is running since a time. How to test a the psu. is there are any tool that can test the psu?

 

Are you REALLY REALLY sure that the psu fans need to spin? If yes my fucking psu is the reason. Then I need to send the stuff back (remember is from corsair and even platinum and 1000W). one of the best available at the market currently. 

[rogueone]

pretty sure that your fan on your power supply will only kick in under Load if it's a hxi or axi by corsair. Could still be the issue but that fan won't spin till it's under a certain load. 

[rudolf]

Yes I have a corsair HXI. Thats the point. Maybe I am just "underloaded"

[ShinchanNL]

1 minute ago, rudolf said:

Yes I have a corsair HXI. Thats the point. Maybe I am just "underloaded"

Ah yeah i overlooked that. Then check it when there's full load.

[rogueone]

looks like your motherboard has a two digit lcd display ...what is the error code you get when this happens? Look it up in your motherboard manual. I'm sure that is even online these days! Check the error code!

 

[rudolf]

24 minutes ago, rogueone said:

looks like your motherboard has a two digit lcd display ...what is the error code you get when this happens? Look it up in your motherboard manual. I'm sure that is even online these days! Check the error code!

 

ok thanks I will do this!

 

In the mean time, can I be sure that its not a software problem or driver problem?

[rudolf]

Ok it happen again, playing a game, after 5 days without this error. It was fast so I didnt see the really last error code but when I see that its in the boot loop I took a look and rebooted after Code AC, sometimes its later, sometimes earlier, its not always the same error code. Sometimes I saw the led debug code started with number 3 means something with the cpu. The first code was AC means ACPI. So something in this time, initializing ACPI and CPU it rebooted again.

 

I dont thinking this information can help you detect the error, but maybe someone has an idea. I have no choice than buying a second component and replace it to test if its working.

[rudolf]

I got my replacement PSU from Corsair today, built in, let the gpu works and it happen again. The system crashed. I guess the issue is the GPU or should I send the entire system back?