AMD7640G+7450M,Dota2 Crossfire -help required

[li20030207]

name of the game: Dota2
name of the game exe:dota.exe
name of the exe/profile you are currently using to make it work:
Hello Dear. I come from China.I bought a Lenovo laptop models Lenovo IdeaPad Z485A-AEI. Laptop configuration: AMD-4500M, 4G DDR3 1600 memory, AMD 7640G+7450M graphics card, 500G hard drive.I was playing the valve Dota2 game.I now use the display card version AMD_Catalyst_12.101.2.I use your graphics card game optimization file: CCAPs 2.4.My question now is: the driver has been properly installed, the default mode or to use AMD predefined configuration file can not be enabled dual-graphics Crossfire.Add Dota2 games into the application settings using the AFR mode can enable dual-graphics Crossfire after entering the game, but the game screen keeps flashing not function properly. This problem has troubled me for a long long time, I beg you to help me to solve this problem, thanks again!If you can help me solve, and I hope you will contact me, my email: li20030207@qq.com

[Undying]

I said it before and i said it again 'Dual GPU' settup (APU+GPU) works only in DX10 or DX11 games, DX9 is no go...

[li20030207]

Originally Posted by Undying

I said it before and i said it again 'Dual GPU' settup (APU+GPU) works only in DX10 or DX11 games, DX9 is no go...

Why AFR mode start crossfire?I run the game start the AFR mode the screen would have been crazy not flashing not start crossfire!

[dampflokfreund1]

As Undying said, it's a DirectX9 game, so it won't run on both graphics cards, Crossfire is impossible. But I have a tip for you: Upgrade your RAM to 2x4 GB Dual Channel RAM, it will double your GPU performance, especially in DX9 games.

[li20030207]

Originally Posted by dampflokfreund1

As Undying said, it's a DirectX9 game, so it won't run on both graphics cards, Crossfire is impossible. But I have a tip for you: Upgrade your RAM to 2x4 GB Dual Channel RAM, it will double your GPU performance, especially in DX9 games.

Thank you,i know!