Problem with PC Powering Off

[sphbecker]

Having a strange problem that I suspect might be due to a under powered PSU.

 

Almost a year ago I built a budget gaming system for my son; I planned to install whatever the Turing equivalent of a GTX1060 was going to be. I got impatient and bought the RTX 2060 when it came out instead of waiting for the GTX1660. The only issue was that the system only had a 450 watt power supply because I had not budgeted for such a hungry card. Still, after adding everything up, even assuming peak usage, the system would only use a max of 400 watts, so I figured it would be fine.

 

Recently it started having an issue were the system will simply power off mid-game. It doesn't BSOD or anything, just goes from on to off. You can't power it back on without flipping the PSU switch. Does that sound like something a larger PSU will fix, or could it be another problem?

[Letgomyleghoe]

if you have to reset the power supply then it is probably a power supply problem, im not an expert so dont take my word. 

maybe if you have another psu lying around try swapping it and see what happens, it might take a while but its better than dropping money on a new psu

 

 

[Bombastinator]

One way to check would be to build a pcpartpicker profile of the machine and check the estimated wattage used.

[sphbecker]

Just now, Bombastinator said:

One way to check would be to build a pcpartpicker profile of the machine and check the estimated wattage used.

I already tried that back then (used a different site, but same idea), I am under 450 watts, but above the suggested buffer.

 

I don't have an extra PSU, other than the one in my main rig and I really don't want to have to take that one. I'll just order another one and see what happens. Amazon has a great return policy, lol.

[MadAnt250]

10 minutes ago, sphbecker said:

I already tried that back then (used a different site, but same idea), I am under 450 watts, but above the suggested buffer.

 

I don't have an extra PSU, other than the one in my main rig and I really don't want to have to take that one. I'll just order another one and see what happens. Amazon has a great return policy, lol.

Go with 500-550 Watts 80+ or better.

 

[sphbecker]

2 minutes ago, MadAnt250 said:

Go with 500 Watts 80+ or better.

 

This is what I ordered, maybe overkill for his system, but I figured a good PSU will last for several systems.

https://www.amazon.com/gp/product/B07YXK53FD/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

PS: I must have ordered the last one, because it was instock when I placed the order.

[MadAnt250]

5 minutes ago, sphbecker said:

This is what I ordered, maybe overkill for his system, but I figured a good PSU will last for several systems.

https://www.amazon.com/gp/product/B07YXK53FD/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

PS: I must have ordered the last one, because it was instock when I placed the order.

That is cheaper priced than NewEgg

[sphbecker]

Just now, MadAnt250 said:

That is cheaper priced than NewEgg

Yep, always check both, it goes back and forth.

[sphbecker]

The last PSU was just an EVGA low-end, I think it is 80+, but not modular. My understand is that EVGA supplies are okay, but not great.

[Bombastinator]

Just now, sphbecker said:

The last PSU was just an EVGA low-end, I think it is 80+, but not modular. My understand is that EVGA supplies are okay, but not great.

There is always the PSU tier thread.  Apparently brand is not a reliable indicator of quality.  Sea sonic used to be my go-to until I saw the tier thread which kinda hates them.  I was expecting seasonic to pwn the A bracket but it isn’t even there.  It might have at one time I guess.

[Hashiba]

Hi, Have you tried removing the gpu to check if the issue remains regardless of the load?

[sphbecker]

Update for anyone who runs across this post. Replacing the PSU did correct the issue. I do not believe the system was exceeding 450 watts, but I think it was getting close enough to cause the PSU to heat up. Looking at the system, it was sitting on carpet and the case legs were sinking down into the carpet, leaving the PSU no room to breath.

 

I put a small board down for the case to sit on to help maintain airfloor. I also replaced the PSU (seeing that I already had the new one there). Doing both changes at once I cannot say for sure what the problem was, but it hasn't happened in the last 2 weeks (typically would happen at least once or twice a week).

 

I am keeping the 450 watt PSU around for an upcoming project I have planned that doesn't need a lot of power, hopefully it is stable for that project. If not, it is destine for the trashcan.