Is my PSU broken?

[epileptic_psycho]

Howdy!

I was play Mirrors Edge Catalyst, which for my GPU is a demanding game. After seeing some graphical artifacts in the game, the room started to smell burned. I shut of the game and shortly after the screen died. Looking inside the computer, the Sapphire logo on the graphics card was not lit up but UEFI-button and control LED was still on. I shut down the computer and cleaned the dust filters. When I turned on the computer again, all seemed fine until i started to play a game. Then the computer would totally freeze up after a few minutes.
Seems like when the PSU has to deliver more power to the GPU the computer freezes. Does this mean that the PSU is broken, or could it be the cables running between the PSU and the GPU? How likely is it that the PSU breaks from playing a game? I think I pretty much overspent on the PSU 4-5 year ago when I bought it so its a crying shame that it breaks down like this.

PSU: NZXT Hale 90 gold cert. 850W
GPU: Sapphire 280X
CPU: i7 4790K
MEM: 16GB Corsair Vengence
MoBo: Asus Z97-PRO WiFi AC

 

[Danbuscus25]

sounds like it probably is your psu, but could also be the gpu.

 

[elbert]

Only way to know for sure is swap it out with another PSU to test. Here is a good quality power supply on a deal right now.
PCPartPicker part list / Price breakdown by merchant

Power Supply: SeaSonic - 750W 80+ Gold Certified ATX Power Supply ($58.89 @ Newegg)
Total: $58.89
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-11-13 06:39 EST-0500

 

[epileptic_psycho]

sounds like it probably is your psu, but could also be the gpu.

You might be right...
I checked here. Seems like if the PSU fails it system would not boot at all. Will try to swap the graphics card first before I blame the PSU.

 

[epileptic_psycho]

Turns out it was the PSU. The cable was welded shut into the power outlet of the PSU and I had to fight hard to get it lose. I contacted the NZXT support and asked if this was something common. The replied and said that this was a first time event and something like this should not be able to happen. NZXT pride them self's and their costumer support but this far, I have yet to see any of it.