HD 6870 not detected by games

Jyris

Honorable
Feb 4, 2014
3
0
10,510
I changed my VGA from HD 5830 to HD 6870, after this, some games are not running, Diablo III says my VGA is not suported, The Sims 3 says Graphics hardware not detected, some games says that my VGA will not run when installing.

I tried to install the latest driver many times, so gave up and I'm using catalyst 13,4 because Age of Empires II not running in newer drivers.

PC config is:

AMD Phenom II X6 1090T
Asus M4A77T/USB3
Corsair CMX4GX3M2A1600C9 (8GB)
XFX HD-687A-ZHFC
OCZ PPCMK2S950-NP
2 Western Digital WD5000AVDS RAID 0
Asus DRW-24D3ST
LG 32SL80YD (TV)
Windows 7 Ultimate 64 bits

So what I have to do to make the games recognize my VGA?

And what is better? Let the 2 HD 6870 with the i7 3930K and HD 5850 with the 1090T (may solve the problem) or let the i7 3930K with HD 5850 + 2 HD 5830 and the 1090T with the HD 6870?

It's my first time posting here, so I'm sorry if I did something wrong.