APU drivers problem

Hello, I own the NP355E7C-S01HK with A10 4600m and 7660g + 7670m (512mb + 2048mb vram).
My HDD stopped working months ago, so I replaced it.
I lost the stock drivers.
I tried a lot of versions and combinations fro AMD website, they simply don't work well.
I also tried SW update drivers on every OS (7, 8 ,8.1) and they were bad either (really bad).
I spoke with samsung, they did a new version but the new version doesn't work well too
(it works, playable but not like it used to).
I found this videos:
https://www.youtube.com/watch?v=zmmP_2lmy5c

https://www.youtube.com/watch?v=cLW4OXGT50Y

I couldn't bring better example for the way my laptop worked. this is the exactly same performance of my laptop
(on 900P, but without recording so the performance are about the same) .
The performance dropped by 30 - 70%!
That's make some games unplayable.
Sometimes, even if the game is on "ultra" and playable, it not looks like "Ultra".
The stock drivers disabled the crossfire automatically, (or used them as one gpu, I really don't understand what it did).
Please help.
Thank you.

 

Hi,

Let me help you through this.

Firstly, for your notebook drivers, you have installed everything right? From Samsung site, you can download drivers or install a software that download drivers.

Now if that's done, we'll deal with GPU ones.. Firstly run Display Driver Uninstaller... AMD website has it or you can download it from elsewhere..
Next, install the following modded drivers.. You need to disable driver signautre enforcement (google how to do it.. its slightly different for 7/8/8,1)

AMD Catalyst 14.9.2 BETA (14.301.1006.0 October 9) - Guru3D.com Forums

These should work otherwise try these ones..

AMD Catalyst 14.9.1 BETA (14.301.1004.0 October 4) - Guru3D.com Forums

or these

AMD Catalyst 14.9 WHQL (14.301.1001.0 September 15) - Guru3D.com Forums

Yup should work now

 

Typically have to uninstall the "stock" version of the driver package in safe mode before the newer ones will install properly (after that, updates run just fine). ..The catalyst package includes some bus-drivers and things like that.

 

Okay I need to install 13.152 embedded (from SW update).
and then install 14.9.2 beta ? (mobility?)


Edit: you wrote "modded drivers" but the links in guru3d take me to AMD website, is that's okay?
and should I install SW update drivers (after using DDU) and the install 14.9.2 on it?
Shouldn't I install the mobility drivers before embedded drivers?

Thank you for help.

 

No, just uinstall everything and install just the 14.9.2 beta.. Should work properly...