Topic Title: HD 7870 crossfire problem
Topic Summary: I have 2 hd 7870's and i am trying to cross fire them with no sucsess
Created On: 12/20/2013 11:10 AM
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 12/20/2013 11:10 AM
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Joined: 12/16/2013

Hi I have 2 HD7870's 1 Sapphire Dual X GHz edition and 1 XFX R7870 Double Dissipation GHz edition, they both work individually in any of the 3 PCIE slots I have on my Asus motherboard, But when I install them together the one in slot 1 is enabled and works fine, the one in slot 2 is disabled according to catalyst control centre even though the device manager says its enabled and working fine, it is detected in GPU Z and CPU Z but I do not get the crossfire option in CCC When I run 3d mark 2011 it reports only 1 card, I have tried removing all driver software with driver sweeper and then installing the latest drivers, I am running out of patience with these cards can anyone help please.


Asus M5A99X Evo R2.0
2 X HD7870 GPU's
8GB Ram
Corsair HX650 PSU
24" BenQ full HD monitor
Windows 7 home premium 64 Bit

 12/20/2013 05:14 PM
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I have the exact same problem. No one has come with an answer though. Im losing faith in AMD drivers.

 12/23/2013 07:06 PM
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Joined: 12/23/2013

I run 2 Sapphire 7870's ( tahiti) and have never had a crossfire issue

I'm still on 13.4 as I have yet to have reason to update and find these the best for my setup. I am going to test the new 13.12 tomorrow.


What board are you using with your gpu's?


  • Asus Maximus VI Hero

  • Intel 4770K @ 4500MHz

  • 2x Sapphire 7870 (Tahiti core) @ 1050/1500

  • 8GB Viper X @ 1866MHz

  • 2x Intel 520 SSD Raid0

  • AX860i

  • H20 Cooling

  • Corsair Carbide AR-540 (White)



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