Black screen after hp logo - video card issue

[redzed]

Hi,

Last week some gray lines began to appear on the screen, until you get to a completely gray screen and the PC block. Now when I turn on the PC and the HP logo disappears the screen remains black. The video card drivers were updated. I did a hardware diagnostics and the problem is the video card:

ERROR ID: GLGCXH-7AR89J-X87R61-Q2QA03.

Video card: Radeon R9 270

I tried to set from bios the integrated video card as the default but the computer still reads the dedicated video card.
Then I removed the video card and now the pc reads the integrated video card properly and the PC working well.
I also used an old video card and computer turns on properly, so the motherboard should not be damaged.

I removed all drivers and I reinstalled them, but the dedicated video card didn't work.

At the moment i don't have another pc to test the video card.

Any help would really be appreciated.

[Karthik]

When an external or more powerful vido card is inserted, the computer will use that component. It cannot run on both components. Hence choose the one you wnat the computer to use and install its drivers.

[redzed]

I had already tried reinstalling the drivers directly from the amd site, without success. Now I am trying to install the old driver provided by hp.

Even with the hp driver the video card does not go beyond the hp logo.

The video card has 6 power pin. The problem could be caused by a poor diet, or has nothing to do?

[redzed · Accepted solution]

I bought a new video card. The R9 270 was broken.