crash PC Shut down when playing "big games" and then I can't reboot it.

[Ekkin0x]

Hi ! 

 

Sorry for my bad englando. 

 

I have a huge problem with my pc and I can't find a solution. 

Before and foremost, here are my pc specs : 

AMD Ryzen 7 2700X Eight-Core Processor

Asus TUF B450-PLUS GAMING

EVGA RTX 3080

16 GO ram 3200 MHz (but due to crashes with the Ryzen, downed to 27xxMhz)

PSU : Seasonic Focus Plus 750W Gold

I don't know if I have to detail the models of the disk :

1 m.2 SSD

1 "regular" SSD

2 hard disk

I have 3 screens : 2x 1080P and one 1440p (Maybe 3 screens is the problem but my brother with a Sapphire nitro + 6800XT)

 

So, here's what happen when I launch a game : 

 

Let's say I launch a game like Hell Let Loose or Red Dead Redemption 2, I launch it, I load the game and then the pc shuts down and don't reboot. I can't reboot it either. To reboot it, I have to :

-Switch the PSU to off position

-Press the start button until the motherboard's RGB light turn off

-Switch the PSU to on position 

And then I can boot it up.

 

I don't know what can cause that. I don't think the PSU is defective, it's 3 years old. For the PSU, I calculated with the BEQUIET website, I don't know if it's accurate but here is the result :

 

Temperature is fine, between 70-80 cause my case has a bad airflow. Both GPU and CPU temperature is normal.

I don't think there's a short-circuit.

GPU load is not even at 50% when launching Valorant yet it crashes.

 

Here are a list of games I can't launch : 

Valorant

Minecraft with shaders 

Hell let loose

Red Dead Redemption 

 

So I don't know what to do but to ask for help on the Glorious LTT Forum.

 

Thank you very much for reading that.

 

Cheers 

 

[PDifolco]

Maybe a GPU spike issue the PSU isn't able to withstand, but hard to tell, make sure  you're using 2 different PCie cables (not 1 with the pigtail) for the GPU power

You could also limit your max GPU power to say 250W and check

[Ekkin0x]

1 minute ago, PDifolco said:

Maybe a GPU spike issue the PSU isn't able to withstand, but hard to tell, make sure  you're using 2 different PCie cables (not 1 with the pigtail) for the GPU power

You could also limit your max GPU power to say 250W and check

Hi ! I am using 3 different PCIe cables, with 2 and the pigtail, I had FPS issues. Could you tell me how to limit my GPU Power ? I'm kinda dumb for that.

 

Thank you !

[PDifolco]

Just now, Ekkin0x said:

Hi ! I am using 3 different PCIe cables, with 2 and the pigtail, I had FPS issues. Could you tell me how to limit my GPU Power ? I'm kinda dumb for that.

 

Thank you !

Install MSI afterburner, there's a max power slider, it's % relative to 320W for a 3080

 

[Ekkin0x]

13 minutes ago, PDifolco said:

Install MSI afterburner, there's a max power slider, it's % relative to 320W for a 3080

 

Well that seems to work, how weird, I'll need to upgrade my PSU then ! Thank you very much for the fast answer ! 

[PDifolco]

10 minutes ago, Ekkin0x said:

Well that seems to work, how weird, I'll need to upgrade my PSU then ! Thank you very much for the fast answer ! 

It's a known issue with the new gen cards, they can draw nearly 200% power spikes for some ms, but then some not that good PSU don't withstand it and trip on OCP

That's why you cannot reboot, the PSU shuts off for a couple minutes

You need a more robust PSU, can recommend a Corsair RMx850 (or above), I have one and never had an issue with my 5900X and 3080

 

[191x7]

Also, consider upgrading the CPU, the 2700X is a huge bottleneck of a 3080.

Get a Ryzzen 5700X, eventually the 5600 non-x.