820-00163 gpu problems

[Yordanov]

I have this board that power but lines on the screen. I tested on hdmi and also lines. Replce the GPU is the solution?

 

[dukefawks]

How did this happen? This is not a normal failure for these boards. Was is already messed with?

 

[Yordanov]

No. GPU is not touched at all
Has broken screen.

 

[dukefawks]

So it was impact damaged. That means it will have cracked traces/balls under the VRAM or GPU. Start with pulling the VRAM and inspecting the traces then reball and put it back.

 

[Yordanov]

Actually this comes to me for screen replacment and I put it on and it work ok on HDMI 1 day. Next day when I started on to replace the screen I noted dark screen and lines on hdmi.

 

[dukefawks]

The drop was severe enough to rip traces under GPU or VRAM or you damaged something when replacing the LCD. Inspect for damage and else do what I already said.