I bought an "AMD ATI Radeon HD 7570 1GB PCI-E Display Port DVI Video Graphics Card 1322-00K00" for my HP Pavilion p7 1287c. Does this need UEFI or does it work with legacy mode motherboards? (talking about the old VBIOS issue & UEFI)
If I try to turn it on the display doesn't work and USB port doesn't turn on my keyboard. Fans in computer turn on but that's it. Any ideas? Works on other computers btw.
