Diagnosing a weird shutdown issue

[DaoNayt]

I get random shutdowns during gaming, folding and sometimes watching videos using MadVR. So it only happens during GPU load. I never had it happen during CPU-intensive work, such as video encoding. When the PC shuts down, the power LED stays on, but I cant turn the system back on unless I flip the switch on the back of the PSU. When it turns back on, the PSU fan gets louder and there is warm air coming out. Usually, even during gaming, the PSU stays pretty cool and almost silent. So I would say this is a problem with the PSU overheating, BUT it only happens occasionally. I can't reproduce it reliably. Why would it overheat one day, and then be fine for a week? It's a Corsair CX450, and it shouldn't have issues powering a Ryzen 5 2600 and an RX580.

Has anyone had anything similar happen?

• CPU
  Ryzen 5 2600
• Motherboard
  Gigabyte B450M-DS3H
• RAM
  G.Skill Aegis 2x8GB 3000 MHz
• GPU
  Sapphire Radeon RX580 Pulse
• Case
  Zalman S2
• Storage
  ADATA SX8200 256 GB + Toshiba P300 1TB
• PSU
  Corsair CX450
• Operating System
  Windows 10

[Awesome84]

I would recommend that you get a PSU that can supply more power since your computer only seems to shut down while it is under load.

[Convictions]

I definitely think it's worth testing w/ a more powerful PSU to see if that makes a difference. You can try buying one from a retailer w/ a good return policy, and then simply return it if the issue persists.

 

Do you have any GPU overclock?

[DaoNayt]

I have no overclocks. The PSU should be powerful enough for this system. Due to the lockdown sitation, it's pretty awkward to go back and forth to the store or service to keep testing one by one component.

[Mark Kaine]

7 minutes ago, DaoNayt said:

I have no overclocks. The PSU should be powerful enough for this system. Due to the lockdown sitation, it's pretty awkward to go back and forth to the store or service to keep testing one by one component.

It's very much your PSU...  though. 

 

 

 

[DaoNayt]

Just now, Mark Kaine said:

It's very much your PSU...  though.

Why is it so random though?

[Mark Kaine]

3 minutes ago, DaoNayt said:

Why is it so random though?

that's just how it is, the load is changing constantly, other variables like temps, power 'quality' etc. 

 

 

and your issue is typical for failing / underperforming psu 

 

I would really change it for something a bit more powerful. 

 

 

[DaoNayt]

It barely survived a year. That's dissapointing. At least the warranty is still good.