Hi all,

I have a question about the problem as in the subject of the post.
I have checked all coild by multimeter and toy osciloscope. It look like everything is ok. There is 1,8V 1V, 0,8 GPU and 1,4 VRAM present.
The resistance is about:
0,1-0,2Ohm on GPU,
16Ohm on VRAM,
2,8 kOhm on 1,8V;
8 Ohm on 1V
3x 12V kOhm

If you preffer you can answer in your native language.

You should check to see if it shows up in device manager (assuming you're using Windows) when it's installed as a secondary graphics card.
There's also a GPU wake pin on the pci connector that has caused "no signal" for me, in the past.
You'll want to make sure that GPU wake pin is connected to one of the "AND gates" somewhere. I'm not exactly sure where it is on your model. If it's not connected, then you might have a hard time finding it. I randomly came across it when I was pushing on the PCB to see if there was a bad connection under the GPU or memory. Evidently my skin was enough to turn on that "AND gate". So you could try touching the pcb all over the place while powering the system on.

There are so many things your issue could be, so I'm just throwing out a couple of ideas to check.

Thank you for answer.

I have found something else. I havent got power on the coil located next to 12V.
The question is how much there should be, 5V too ?
How to find the component "BFDJ 206"?