Brand new computer shuts down on its own randomly

[alexcrowe68]

I just put together a new computer and everything seemed to be working fine but after about a week of using it it started shutting down randomly on its own. These shutdowns happen anywhere from as soon as I start the system up to three hours after

It's a mini ITX system so I thought thermals might be the problem but ramping the fans doesn't do anything to solve the problem

I sunk a lot of money into this project and I really hate to see it be for nothing

https://ca.pcpartpicker.com/user/Lowredfred/saved/GwXgLk

If the link doesn't work I'll try to get one that does but that's a list of the components I used to make the PC

https://imgur.com/a/hduicmE[/img

 

[g-unit1111]

Well the computer keeps shutting down randomly so I can't take screenshots and post them and as for the spec sheet I don't know how to make it stop saying that it's private I've tried before and I couldn't get it to work properly so I'll just say it here

I'm using an
AMD ryzen 2600 X
A zodiac GTX 1080 Mini
Two sticks of 8 GB Corsair vengeance lpx Ram
My motherboard is the gigabyte gaming Wi-Fi ab350
My power supply is a 450 watt sfx from Corsair
The storage I'm using is an m. 2 slot Samsung 960 Evo and a 1tb two and a half inch SSD from crucial
And yes I applied thermal paste the cooler I'm using is the small form factor one from noctua for the am-4 socket

What case are you using? I am assuming that if you're using an SFX power supply that you're using an SFX case similar to a Node 202 or Silverstone Raven?

 

[g-unit1111]

My Suggestion

For an SFX build? I would go with something more like this.

Corsair SF600
Silverstone SX-650G

Both of these are mini ITX and will provide plenty of power for a GTX 1080.

 

[Rogue Leader]

While I agree its probably the power supply, I'm thinking the PSU failed (or is failing). Those Mini GTX 1080s only pull in about 195w, 450 should be enough for that system. The 600 will give you more headroom, including thermal headroom in the PSU.

Once you get it in there you should check your temps and airflow in the case. I have a feeling heat damaged the PSU and caused this failure. So to check airflow you can use a match and blow it out then hold it next to a case intake and see if the smoke comes out your exhaust or gets trapped inside. You can also open the side of the case slightly to watch the flow of where it goes. A true smoke machine is best but I'm not gonna tell you to go out and buy one for this.

 

[alexcrowe68]

To put a close to this thread there was a lead on the motherboard that was piercing the internal power cable so here is a closer to the cautionary tale to check your cable runs