Psu acting weird and smells or gpu fried? Help please

Neftie_1

Prominent
May 7, 2017
2
0
510
Greetings! My apology if this wrong section to post in.

I woken up with my pc turned off, it was turned on idle while I wenter to sleep as I don't turn it off over night. When I tried to turn it on, it won't boot up. I tried to unplug the power cord and tried it again to be greeted with a single click sound from the psu.

I started taking it apart and clean it as it been a while, but when I tried to boot it up it still giving me same click noise from the psu. So I decided to test each component one by one, started by removing the GPU, and volva it starting to boot! So the gpu the issue? Which what I was thinking until I start smelling faint smell of burning electric coming from the psu.
The psu also refuse to boot if I try to attach this particular white head I don't know what it call but I will include a picture below.
Also the pictures of this psu that came with the computer prebuilt. I don't know what brand is it and it seem to be shaped to use with this computer only.
But yeah mainly if I plug in gpu = no boot, just click
Same with plug in the white head, with or without gpu
And burning smell if I detach both to let it boot.

My specs are
Nvidia gtx 780
Intel i7 4770k cpu
X2 croisar 8gb ram
120gb intel ssd
1tb western digital hd
500w 80 gold plus psu idk what brand
Nzxt kraken x40 liquid cooling for the cpu
MSI 87I motherboard

The pc is made by ibuypower Revolt R770
To be honest I regret the purchas because of the tiny cramped built of the case and lack of space for expansion. I would try to see if this is a opportunity to replace the case and others thing to make it a regular sized pc.

But first I want to find out which is the faulty part. My psu or gpu or the motherboard? And what is to replace and buy. I don't have a lot of money due to recent cancer treatment but as long as it under $200 or so.

Please help! I'd love to also get some recommendation on part to replace such as case and psu. Thank you all very much in advance!!

Picture : http://imgur.com/a/EMRzh
 

Neftie_1

Prominent
May 7, 2017
2
0
510
Ok I tried and it seem like even though the psu power on its the one producing the smell.
Should I throw this away? The issue is finding a replacement psu like this as most of them are square shaped and doesn't fit issue this case. Thank you for that suggestions !
 
Solution