Did you change the drivers fron Nvidia to ATI when you put the old ATI card in?
When you say that the recovery disk is no good and it won't format the HDD because it is damaged do you mean the HDD is damaged or the CD?
OnePlus 5 review
See the work of famous artists playing with toys
iPad Pro 10.5in (2017) review
Comment faire une capture d’écran sur un Mac ?