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elstaci
MVP

Re: Sapphire RX 580 nitro + 8GB shuts down PC while gaming

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That is not a good sign. See if you can download another diagnostic program that tests PSU and see if it happens again. If it does, sounds like you have a failing PSU under stress.

I ran the OCCT PSU test which is basically running the GPU and CPU stress test and it worked fine. I have read that OCCT PSU test can damage or ruin a weak or Cheap PSU. So be careful when using it. Many websites concerning testing PSU recommends OCCT.

This from 2017 from Tom's Hardware Forum with a very similar problem you are having with Games and OCCT: System rebooting issue, trying to diagnose, possibly PSU ? - Components

After OCCT finished it directed you to the results Folder. If you click on that folder is shows all the test results  by clicking on the images.

This comment about using OCCT to test your PSU:

But if you still want to test your PSU then you can try OCCT's Power Supply test which will start a CPU Linpack benchmark and a GPU benchmark in parallel, and that should maximize your system's power consumption, and it also generates graphs of the values returned by the various temperature and voltage sensors that your system has, you can look at them and see if everything's right.

Note that you should not attempt this test if you have a "no-name"/low-end chinese PSU, here's the kind of results that you can expect if you still attempt it.

From Tom's Hardware Forum:

OCCT Power Supply

OCCT Power Supply generates CPU and GPU loads capable of taxing your PSU. At least that's the idea.

Tests like this one, which generate game-like power-consumption numbers, are used to optimize cooling solutions and fan curves. If everything in your PC works well up through this point, then OCCT Power Supply can be used to help minimize noise levels by guiding you in the direction of optimized ventilation. Any task that pushes a PC harder than this can be dealt with by setting fan curves that get more aggressive under higher loads. Establishing the system’s absolute limit comes first, after which you can fine-tune performance with less-demanding tests like this one.

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simgaga
Journeyman III

Re: Sapphire RX 580 nitro + 8GB shuts down PC while gaming

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So every time I try starting the OCCT Power supply test the pc shuts down, so thats nit giving me any information apart from that something is not working...

I tried the Furmark benchmark for the gpu and if i set it to normal full hd test settings the pc also crashes and reboots...

so I guess my psu is the problem and failing to bring up enough power??

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elstaci
MVP

Re: Sapphire RX 580 nitro + 8GB shuts down PC while gaming

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Sounds like it. You used two different Diagnostic tests from OCCT and FURMARK. Both failed when the load is very heavy. Seems like your PSU can't handle the RX GPU card you installed or the PSU is bad. Take a look at the edited previous Post that I made. I added a Link from Tom's Hardware Forum from a User with basically the same results using OCCT and FURMARK.

This from 2017 from Tom's Hardware Forum with a very similar problem you are having with Games and OCCT: System rebooting issue, trying to diagnose, possibly PSU ? - Components

The reason why you didn't have this problem with your old GPU card is probably because it used a lot less power than the RX thus not taxing your PSU. Your PSU might be a low quality PSU that can't keep up with the power demands of the latest games and RX GPU card.

Since you have the MINIMUM REQUIRED PSU rated for the RX card, I would upgrade it if you can afford it. I would purchase a GOLD or PLATINUM 80+ Rated 800 + Watt PSU.

You have plenty of information for you to make an intelligent decision on what to do. You can always take the computer to a Tech Specialist and have them check the PSU professionally. But it might cost as much a new PSU to find out.

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plumboby
Miniboss

Re: Sapphire RX 580 nitro + 8GB shuts down PC while gaming

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Its PSU related from the tests you have done to crash on load is PSU failing on & under full load conditions highly recommended to invest in peace of mind new PSU i would recomend. Been down this PSU road a few times or if many more go with my recomendations & others for a new direct upgrade as the Sandys draw a bit as it is. I have a sandy i5 2400 with a 600w Antec high output unit with a rx560OC 4G its plenty sufficient for my needs. I always recomend to go over the recommended wattage for in future proof upgrades if you decide to install any other item which will put your system on more load. I say the load it under for gaming Type & quality of PSU will be the underlying problem. I have had this issues with not so good PSU before its why now i buy really good brands from reputable companies with more than needed wattage for deteriation as they suffer over time.

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simgaga
Journeyman III

Re: Sapphire RX 580 nitro + 8GB shuts down PC while gaming

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Thanks a lot for all your help

I will buy a new PSU with good quality and sufficiently more W power than my actual one...

Hope this will work out then

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elstaci
MVP

Re: Sapphire RX 580 nitro + 8GB shuts down PC while gaming

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Fingers crossed

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