you are
WRONG too

I tried to run 10 amd cards under windows and worked fine

do you have any experience building rigs ? modding bioses ( modding , not just changing mem staps) , modding mobo bioses )
or just reading articles about what possible and what not

its really pita to set up , not a real plug and play solution

Show us pics then, of 10 AMD cards mining under windows, if you have achieved it. If you dont have pics, then stfu and crawl back to your hole of ignorance.