While your questions seem to have an overarching point and reason, they are often very short on details and expect the reader to have read all your previous recent questions in order to define exactly why you need a specific almost never used feature. Your questions tend to be simultaneously too broad (no real details) and too specific (focused on one tiny aspect of a larger problem).
If you need a GPGPU card (that would work headless) then you should be buying one of those, and potentially using an operating system that is more suitable. Consumer cards are designed to work in very particular situations and if you head "off piste" then you have to expect to work around their design limitations. Windows 10 was also mainly intended for home and work computers where an external display is almost universally required or available.
You also have been asking a lot of questions that have slightly worrying ramifications. I was particularly concerned by What is this number I saw on ATIwinflash? which suggested that you really had no idea what files you were downloading and flashing to your card or why it is important that you download the right VBIOS file for your graphics card. You should know what file you are downloading before you got to the stage of trying to decrypt some arcane part numbering system. You are effectively diagnosing a problem that you yourself created rather than trying to deal with a problem that other people may have had and be able to help with.
In a number of cases it appears that the problem is not with your computer hardware or software but with the specific things you have expected to "just work". As such it is difficult to explain in simple terms that you should stop doing random things until you know exactly why you should or shouldn't be doing them in the first place.