Question Faulty PSU and new PSU recommendation ?

Mar 19, 2023
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Hi! So for almost a month now, my pc has been having an issue where it reboots under load, usually when I'm playing or even just start a game.
I myself ran CPU and GPU (FurMark ROG edition) stress tests and checked temps and even formatted the computer, the CPU tests along with the temps were fine, but the GPU one makes the pc instantly reboot.
The Event Logger shows Event ID 41 Kernel Power with all the error codes as 0.
I took out the dedicated GPU and ran the stress test again, and it worked fine with the integrated one, still I can't compare the power that the dedicated GPU draws compared to the integrated one.

Since I couldn't figure out if the problem was the PSU or the GPU, I decided then to take my computer to professionals, so I took it to the same people that built it.
And well... the professionals weren't that professional... and I'm not sure if I trust them. They said that they ran tests on my computer, updated the bios and that everything seems fine, they also said they tried testing opening the games on my pc to see if it would reboot (From my steam I can see they ran CSGO for 13 minutes, ROR2 for 5 mins, and Wallpaper Engine for 6 hours) and that only one game in particular was doing that, and it is "Sons of The Forest" then the guy proceeded to say that "It reboots on that game because your computer doesn't meet the requirements", which is not true because it does meet the minimum requirements and even if it didn't, I don't think it would simply reboot like that, maybe just freeze? But I don't know. They also said that they left a "Game running for hours" and the game in question was... Wallpaper Engine...

Anyway, I find it weird that it only rebooted in one specific occasion to them and in many occasions to me, they said that they tested every component (Memory, CPU, GPU) and cables and such and everything was fine, the only thing they didn't test was the Power Supply because they didn't have one that would "match" mine, then said that for the PSU to be tested they would have to take the pc to their "Laboratory" which could take up to a month, I don't have that kind of time so, from then on I decided to just get my pc back and deal with it or take it to someone else.

Coming home I decided to do something that I forgot to do, and should've done in the first place, which was trying to plug the pc on a different outlet and without using an extension cord, voilà the problem seems to be resolved, I was able to run the GPU stress test without the pc rebooting and game just fine, then exactly a week later (today) the problem is back on again, I was gonna play uncharted and while on the loading screen the pc rebooted, running the stress test again rebooted...
The professionals before said that they tested the GPU and that it wasn't the problem, and they didn't test the PSU, so a logical conclusion to this is that my PSU is faulty.

Second problem, money. I'm on a budget and don't want to spend much more than €100 on a PSU, I don't know much about power supplies, the one I have now, that is supposedly faulty is a NOX Urano 750w 80 Plus Bronze one, which I thought was good, but looking up some stuff about them reveals that they're not very trustworthy. I admit I'm a bit paranoid now, I don't want any more parts failing, and I don't wanna do something that I'll regret, I'm on a budget, but I don't wanna cheap out, and I want to ensure quality. I was thinking of buying a 750w or 850w 80 Plus Gold PSU (can be less wattage or less rating, that's just what I was thinking of), yes I know the wattage could be a bit overkill for my rig, but I want to future-proof for any upgrades. I live in Portugal and don't know many trustworthy PC Part selling websites that I can buy from that are from/ship here, nor do I know which brands are good for PSUs. As a temporary solution until I figure out what to do, could for example using GPU Tweak III and lowering the power target of my GPU keep the computer from rebooting, or how could I limit the power my GPU draws?

So, should I test anything more on my pc, or just buy a new PSU? If the latter, then what PSU should I buy and from where?

This is my rig:

MOBO: B360M PRO-VDH
CPU: Intel I7 - 8700 3.20GHz
GPU: ROG STRIX RTX 2060 6GB (OC I think)
RAM: 16 GB
SSD: 860 QVO 1TB
HDD: ST1000LM 024 HN-M101MBB
PSU: NOX Urano 750w 80 Plus Bronze
 
Honestly, I'd just replace the PSU. The Nox PSUs are, as a whole, very cheaply made. They dump a lot of inexpensive crap, mostly in Spain and Portugal, which undercuts the market for the good PSUs which tend to be more expensive there than most Western countries.

This company is more dishonest than even most companies selling junks PSUs. In fact, Nox PSUs were all on the Do Not Buy Tier on our curated PSU list because the company played bait-and-switch with reviews. They were caught sending out early samples out to reviewers and then for the production line, switching out parts for much cheaper/lower-quality ones, including capacitors so dodgy that the companies on the capacitors couldn't even be shown to actually exist.

Sudden reboots at load are most likely from high temperatures or junky PSUs. The temperatures are easy enough to check and given that I'd replace this PSU even if I wasn't crashing, I think replacing it is a no-brainer here.

PCPartPicker Part List

Power Supply: BitFenix Formula Gold 750 750 W 80+ Gold Certified ATX Power Supply (€112.93 @ Amazon Espana)
Total: €112.93
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2023-03-19 11:13 CET+0100


Assuming you're in Spain (since that's where you see a lot of Nox PSUs), that's about as cheaply as a good 750W is available.

A modular is a little more. If you want the modular and not spend more, then there are 650Ws available.

PCPartPicker Part List

Power Supply: Corsair RM650 (2019) 650 W 80+ Gold Certified Fully Modular ATX Power Supply (€102.00 @ Amazon Espana)
Total: €102.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2023-03-19 11:15 CET+0100


Really, it depends how far you want to prioritize staying close to 100 euros vs. future-proofing. Good and modular 750W PSUs (in Spain, so this is all inapplicaple if I guessed wrong) are generally in the 120-130 euro range. That was cheaper a few years ago, but supply issues gummed up the works in PSUs and inflation is playing its part as well.
 
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Honestly, I'd just replace the PSU. The Nox PSUs are, as a whole, very cheaply made. They dump a lot of inexpensive crap, mostly in Spain and Portugal, which undercuts the market for the good PSUs which tend to be more expensive there than most Western countries.

This company is more dishonest than even most companies selling junks PSUs. In fact, Nox PSUs were all on the Do Not Buy Tier on our curated PSU list because the company played bait-and-switch with reviews. They were caught sending out early samples out to reviewers and then for the production line, switching out parts for much cheaper/lower-quality ones, including capacitors so dodgy that the companies on the capacitors couldn't even be shown to actually exist.

Sudden reboots at load are most likely from high temperatures or junky PSUs. The temperatures are easy enough to check and given that I'd replace this PSU even if I wasn't crashing, I think replacing it is a no-brainer here.

PCPartPicker Part List

Power Supply: BitFenix Formula Gold 750 750 W 80+ Gold Certified ATX Power Supply (€112.93 @ Amazon Espana)
Total: €112.93
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2023-03-19 11:13 CET+0100


Assuming you're in Spain (since that's where you see a lot of Nox PSUs), that's about as cheaply as a good 750W is available.

A modular is a little more. If you want the modular and not spend more, then there are 650Ws available.

PCPartPicker Part List

Power Supply: Corsair RM650 (2019) 650 W 80+ Gold Certified Fully Modular ATX Power Supply (€102.00 @ Amazon Espana)
Total: €102.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2023-03-19 11:15 CET+0100


Really, it depends how far you want to prioritize staying close to 100 euros vs. future-proofing. Good and modular 750W PSUs (in Spain, so this is all inapplicaple if I guessed wrong) are generally in the 120-130 euro range. That was cheaper a few years ago, but supply issues gummed up the works in PSUs and inflation is playing its part as well.

Wow, I didn't know the company was that bad, I'm not from Spain tho, I'm from Portugal, I think amazon spain does ship to Portugal, so I'll check that out, thank you!!