Can not enable dual graphics on amd a8 3520m(laptop)

Hey

I have a very confusing problem and have tried everything in my knowledge to fix. Dx10,11(dx9 games do Not support dual gpus on amd website it states) games do not use both gpus according to my amd system monitor and if i disable duel gpus there no performance loss nor gain.

I have latest dx package api and latest 12.8 mobility drivers and windows updates. from amd auto detect because amd asks for a 'username and password' under attempting to find driver for my rigs specs 0-0

I have used driver sweeper to completely get rid of all amd related files and reinstall no luck. Went into the bios and put on Fixed gpus but this only leads to problems and decreased performance because i think it only uses the other discrete gpu not the apu. Where as on dynamic its the other way round.



I am so baffled is amd not releasing proper drivers and a bugged website preventing me from getting the right drivers. Even though it still Auto detect detects it as a amd A8 3520m.

Plus windows and AMD pick up my secondary gpu as a 6400m series not a 7450m or 7400m series.

My full specs:

Name of laptop: hp pavilion g 1331ea

OS: Windows 7 64bit home prem SP1

CPU: AMD A8 3520M QUAD CORE 1.6ghz turbo 2.6ghz

GPU: DUAL radeon graphics. A 6620g in the apu and a 7450m as the discrete(the one thats not working and listed as a 6400m???)

RAM: 6gb ddr3

HDD: 750gb

This laptop is only 1 week old.

Thank you Please help.

 

I updated my BIOS it enabled and detected the right hardware.