No display with new gpu and psu

Futur001

Commendable
Sep 12, 2016
19
0
1,510
Hi ,
Firstly, sorry for my bad english, i'm french canadian and i'm on cellphone .

Well,I have a problem that actually seems irreparable.
I have an A10-5700 processor and recently I improve my psu and my gpu for a evga 600b and a gtx 950.

My old graphics card was not working and my old alimention was insufficient.
Since I no longer had my old graphics card I can not upgrade my drivers and either delete the old.
After all installed I run the computer and nothing is displayed on any screen.
I tried Cable HDMI, VGA and DVI but nothing works.
I reconnected everything several times but nothing ...
And over the HDMI and VGA integrated card seems disabled.
The only thing I could see is a color sequence (white, green, blue, red I think and it happened only once) and also all the fans works.
I have also tried removing the battery and reset the CMOS.
Tell me please that you have a solution.
Thank you a lot if you help me.