Yes, but I wrote above that on dump 1 the laptop took a long time to start, but when it started I tested the video card in Furmark, it was OK. I also tested the processor. When I installed the BIOS from the HP Elitebook 850 g4, it generally worked perfectly, but the laptop did not see the video card. So I am sure that the problem is not in the hardware.8mb non Programming
not care ZBook or EliteBook
it same BIOS
next you need check hardware