Hello, i have a APU A10(HD7660D) and HD6670. Dual graphique with APU cant work because my motherboard, ASRock FM2A 75 Pro4 accept only HD7450,7470,7570 and 7670. A lot of website explain HD7670 is just a rename of the HD6670 (http://hexwired.com/computers/videocards/amd-announce-the-new-radeon-hd-7670) but i cant find HD7670 vbios on the web. Someone can help me to find it ? my graphic card is SAPPHIRE Ultimate HD 6670 1GB GDDR5 Dual graphique can work with a flashing bios ?