How do I change from primary adapter to linked adapter AMD

Hello,
I am having some problems with my laptop, probably the gpu.I have the amd radeon hd8670m 2gb card with the apu a10 2,5ghz and the laptop can not even run old games at high settings such as cod4.I checked the amd ccc from hardware and I saw that the primary adapter is weaker than the linked adapter. Can you guys please tell me how to fix this?I'd really appreciate it.