black screen, white cursor. problem

sebawarman

Reputable
Aug 3, 2014
29
0
4,530
My computer started having some problems when i alt tab, my image went wrong like when the video card its messed up, after that i got a black screen and couldnt do anything. so i restarted computer.

after that i couldnt get past w7 logo, i didnt see anything from that, i could hear the user and password sound but i only see a black screen with white cursor.

I tried format and it worket but the problem started again after i had to install my video card graphics and had to reboot.

I have a Sapphire HD 6790 1GB DDR5, i tried with the lastest drivers and the CD drivers.

When i turn the PC on i notice some red lights on the motherboard, 1 on the RAM, another near the processor and 1 near the video card.