Power supply and display problem on a GTX 750ti

[rampant_ranger]

Hello,

My system is an HP Z600 Xeon E5520@2.26.
I have connected the 6 pin power cable to the graphics card but when Every alternate time I switch it on the computer starts but does not show any output on the screen (black screen).

What should I do?

 

[hang-the-9]

Did you get the card new or used? If used, did you see it running before you bought it?

The power supply in that system should be good quality. Try doing a BIOS update on the system, test the card in another system.

 

[rampant_ranger]

Did you get the card new or used? If used, did you see it running before you bought it?

The power supply in that system should be good quality. Try doing a BIOS update on the system, test the card in another system.

I don't know what happened but it fixed itself. now it does not happen