Problem with my gigabyte gtx 1050

[thekillerx10]

I bought a gtx 1050 September 3 it was working fine I connected it with a HDMI to vga convertor I played games on it yesterday everything was fine and today I accedently disconnected my vga from the convertor it was connected to my screen and GPU before I disconnected the vga from the convertor the computer was off I connected the vga again and turned the computer on the screen was black I tried many times black again I have a 240w psu

Please help me and tell me what is the problem exactly

 

[norcalsc]

your PSU is no longer cutting it