Pc keeps restarting

[super13omb]

I built a sister a new low budget pc and it seems like since we built it it has had this problem but it restarts every 1 to 10 minutes. I have reinstalled windows a few times to get it to work and wiped the drive completely each time. I have switched out the ram and tried to see if it was that but the problem persisted and I'm pretty much all out of ideas.
Specs
Nvidia GT 710
Amd fx 4350
Asrock mobo
1600 ballistix ram
400w psu
Toshiba 1tb hardrive

 

[popatim]

Which 400w psu is this?

 

[super13omb]

Which 400w psu is this?

 

[super13omb]

Da series 400w

 

[turkey3_scratch]

Da series 400w

Diablotek, I'm not surprised.

 

[super13omb]

So is it the psu

 

[turkey3_scratch]

Those Diablotek units are junk. My money is all on the PSU.

 

[super13omb]

I'll try to give it a shot with another I guess

 

[turkey3_scratch]

If you need a recommendation I can tell you, I don't want you getting another crappy PSU.

 

[super13omb]

Yeah sounds good to me. I don't need anything over a 400 thus isn't really going to be upgraded and is really low on power usage

 

[turkey3_scratch]

Budget?

 

[super13omb]

Yeah for sure

 

[turkey3_scratch]

The cheapest unit I would ever recommend someone is this:

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 430W 80+ Certified ATX Power Supply ($32.83 @ Amazon)
Total With 10% Tax: $32.83
Total Without Tax: $29.85
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-06-27 21:44 EDT-0400

Better reliability, better performance:

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($47.28 @ SuperBiiz)
Total With 10% Tax: $47.28
Total Without Tax: $42.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-06-27 21:48 EDT-0400

 

[super13omb]

Power supply didn't fix it

 

[BadActor]

Check your CPU and GPU temperatures. If you're PC is plugged into a surge protector, try plugging it directly into the wall. If neither of these is the problem, then considering what you've already tried, I would say it's either the motherboard or CPU. Since CPU's rarely fail, I would start with replacing the motherboard. If you can, try your CPU in another PC to rule it out.