MSI gt83vr 8rg titan - no picture after repasting and repading GPUs

[ktmmotocross]

Have a VERY bad day.
Have this MSI GT83VR 8rg titan that wont show picture after both 1080ti cards repasted and repaded. offcourse as first i unplug main battery. everything went ok, but when starting i have no picture. Whole laptop looks like starting, have all voltages. i try it without gpus, but no luck. i have older gt73 with it and it shows picture without gpus so there is something with board. Flashed bios and have same results. i think about chipset as it is nototrious SR40 series, but dont want to make harsh move

Any hint?

No SN as no label on the back

[tebgas]

Oh my god, I just got the same error as you. This GT83VR 8rg did not display the image after both 1080ti cards were reglued and replaced. I don't know what to do???