Question PC Suddenly died, then no signal

[Wowo95]

Before you read this, i'm sorry about my grammar english, i hope you understand.

I have this PC for almost 3 years. Then today as usual i played league of legend. Played 2 match,then after the 3rd match, my PC suddenly died. No bluescreen, just died like someone plug out my power cable.
Then i tried to turn it on again, but no response. After that I plug out all the cable then plug it in. The PC turn on but no display.
I swapped my main hdmi cable to second hdmi cable, then change it to dvi cable, still no display.
I restart again but still no display, then after that i check my GPU. My fan GPU not spinning, but the led brand logo is on.
And i can hear the sound from windows when i plug my usb, like keyboard,mouse, and bluetooth.

So is this GPU Fault, or PSU, or Mobo? Anyone can help?

Here my spec :
Cpu : R5 1600
Mobo : ASUS B350-F Strix
Gpu : Sapphire Rx 480 4GB Nitro + OC
Ram : 16GB Corsair Vengeance LPX
Psu : Be Quiet 500W

 

[Sc4fy]

Is it possible for you to get into your bios?

 

[Wowo95]

Is it possible for you to get into your bios?

No it is not possible there is no signal on my monitor. Cant see anything

 

[onespeedbiker]

When your PC suddenly lost all power, is it possible you had a power failure? If not it's more than likely a PSU failure.

 

[Wowo95]

P

When your PC suddenly lost all power, is it possible you had a power failure? If not it's more than likely a PSU failure.

Power failure like blackout?

 

[onespeedbiker]

Yes

 

[Wowo95]

Yes

No there was no pwer failure. Oh and sometimes i need to press my turn on power a few times.
Is it PSU fault ? PSU fault then not enough to power my GPU?

 

[onespeedbiker]

Yes, there might be enough power for a led or a motherboard beep signal/ fan but little else would work.

 

[Wowo95]

Yes, there might be enough power for a led or a motherboard beep signal/ fan but little else would work.

My motherboard never had a beep sound. Yeah all fan is working, fan case, cpu fan, gpu led, mobo rgb led. Except my GPU fan.
Well, im gonna bring it to PC repairer tomorrow, becaus i dont have spare component to try 🙁

 

[Satan-IR]

Yes, sounds like a PSU failure.

 

[Wowo95]

Yes, sounds like a PSU failure.

I hope it just PSU failure 🙁