My pc turns on no bios no windows no display my mouses leds only sometimes turn on

Feb 3, 2019
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So my pc turns on the cpu fan works gpu works psu hdd ssd case are brand new and my ram is ok . Psu antec 750w ssd kingston a400 hdd wd blue, we accidentaly didnt plug the 6 pin into the gpu at one of the times of trying to fix it and it showed up on screen we plug it in nothing again.
 
Feb 3, 2019
3
0
10

Oh shit yea
Cpu amd a8 7670k
Gpu gtx 950 3gb ddr5
Ram 6gb ddr3
Mobo a6hm e33 v2
Psu antec ea 750w gold 80 plus
Hdd wd blue 2tb
Ssd kingston 240gb a400
Some new simptoms:
The pc now gets to the bios settings doesnt want to recognise the usb with windows(all this with no gpu) doesnt want to boot and in shell it starts to countdown and stops at 1sec and freezes