Black screen appears

[Gk45]

When I installed my new gtx750 GPU on my PC my PC suddenly froze during drivers installation after that I restarted it and then it shut down itself I tried again and then black screen appeared. So I decided to remove the GPU and clear BIOS then my PC started running normally. Today I got the same problem but before I had squares and restarted by telling me the integrated GPU model on the screen.now my PC does not boot up cause of black screen.My PSU has 22A on +3.3v, 32A on +5v,14A on +12v, 0.8A on -12v and 3.0A on +5vsb rail, combined is 430 w max

 

[TheDankMemer]

Try going and deleting the drivers and reinstalling them with your GPU in. What brand is your PSU? Also if you manage to download your drivers, try playing a game or running FurMark and see how that goes.

 

[Gk45]

I don't know the brand https://i.imgsafe.org/789730d.jpg .After default the BIOS my pc run normally with integrated graphics

 

[Shaun o]

It`s because your PSU in the system does not have enough wattage and 12v amp rating.

When you install and load the graphics card driver for the card it unlocks the working potential of the Gpu chips on the Graphics card, requiring it to use more power.

Ding, it falls over or the complete system does on trying to power it up again one the driver has been installed.

 

[Gk45]

I will try install the new gpu with other psu. But what about the integrated graphics why these squares appeared on the monitor then i could't boot up my pc and forced to default my BIOS to start it normally, today i want to mention that also appeared BSOD for the first time since i installed my new OS by telling me memory failure but after that no more BSOD appeared .Is still the problem with psu?