HELP! Cant Hybrid CrossfireX

Good evening everybody,

i have succesfully build my 2 AMD A10-6800K PC's one of them has a HD6670 the other one has a HD7750 and i realized that BOTH of them dont have hybrid crossfirex enabled! My thought was that because i installed the driver for the a10 without the graphicscard installed it wasnt installed for the graphicscard so i used the amd uninstall tool and did a fresh install with both installed a10 + hd7750 but i still cant enable it.

Does anyone have a clue what could be the problem here?
BTW. both have the F2A85-M motherboard 

wich makes me really sad i wanna cry in a corner!
(because i was such a noob and didnt realized it)

ah i forgot to mention that im using win8 and only the dedicated graphics are enabled 

maybe you should also enable the onboard  graphics of your apu and then make sure you have the latest catalyst drivers.

where should i enable it? In the bios or in windows?

Bios

i looked through the BIOS and cant seem to find it