Thoughts on possible power issue?

[Flocker Bocker]

Ryzen 9 5950x

Rog Strix RTX 3090 OC

2 2600 GSkill RGB 16GB memory

3 Corsair AF120 case fans

AIO - no clue which one but "designed by CoolerMaster" GAME? 120mm fans on it 360 radiator???

Dark Hero motherboard

 

I have run FurMark, AMD Ryzen Master Burner, and Prime95. All tests.... to my knowledge..... passed, but when playing games set to "Ultra" or "GeForce Optimal" my pc will shut down completely. The lights come back on the pc, and the temps were still ok 65-70 range, but it will not start unless I manually flip the power switch on the back of the pc.

 

 

[Flocker Bocker]

whoops forgot to mention the PSU, Corsair 850 RM the letters are white so gold rating??

[Conch]

Are either of your cpu or gpu overclocked? Your PSU is likely tripping from the power draw of them. Unrelated to the issue, but you should reconsider pairing 2666mhz ram with a 5950x and 3090, It will bottleneck you a decent amount. Doesn't make sense to cut corners on a build you seem to be going all out on with the most expensive components on the market in a 5950x and a 3090. Try to go for at least a 3600mhz cl 16 kit. 

[Flocker Bocker]

1 hour ago, Conch said:

Are either of your cpu or gpu overclocked? Your PSU is likely tripping from the power draw of them. Unrelated to the issue, but you should reconsider pairing 2666mhz ram with a 5950x and 3090, It will bottleneck you a decent amount. Doesn't make sense to cut corners on a build you seem to be going all out on with the most expensive components on the market in a 5950x and a 3090. Try to go for at least a 3600mhz cl 16 kit. 

just installed 2 GSkill Trident Z neo 32GB 3600 so hopefully this is what you meant.

[Flocker Bocker]

1 hour ago, Conch said:

Are either of your cpu or gpu overclocked? Your PSU is likely tripping from the power draw of them. Unrelated to the issue, but you should reconsider pairing 2666mhz ram with a 5950x and 3090, It will bottleneck you a decent amount. Doesn't make sense to cut corners on a build you seem to be going all out on with the most expensive components on the market in a 5950x and a 3090. Try to go for at least a 3600mhz cl 16 kit. 

and no I do not overclock my PC, I'm still a noob to PCs. This is my first after saving for 4 years and coming from console. .

[Flocker Bocker]

I think the issue was the power supply, I installed a 1000w Seasonic titanium and problem is gone.