Topic Title: Crossfire XFX 7950s freezes after ~5 minutes of full load.
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Created On: 09/19/2013 06:31 PM
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 09/19/2013 06:31 PM
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Joined: 09/19/2013

Hello.  I have (2) 7950 graphics cards with an intel DZ68BC motherboard, a 2600 I7 processor, and a 750 watt power supply.

Individually, each of these cards has no issues, but when I hook them both up, my computer crashes after a few minutes.  I tried to use each graphics card by itself with the other unplugged and I have no issues on either of them. Freezeup only happens when I enable both.  They both show that they are working and the heat is low, so I'm at a loss.  I tried the beta drivers, the regular drivers, as well as the new 13.9 driver. I completely removed the previous driver before installing the 13.9 driver.

Any suggestions??

Please advise


 09/20/2013 12:02 PM
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Case Modder

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Have you upgraded to the latest BIOS version for that board?  Any BIOS revision for the 7950s?  Using one CF bridge?

One card is at 16x and the other is at 8x on that board.

Check in BIOS if PCI Express Auto Configuration is ENABLED.





Non-noob components.

 09/20/2013 12:22 PM
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80 Column Mind

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a 750 watt power supply

Make and model.

AMD FX-8350 w/ Corsair H105, ASUS Sabertooth 990FX Gen3/R2, 8GiB G.SKILL DDR3-2133, XFX HD 7970 GHz Edition, 1TB Samsung 850 Evo, 256GB OCZ Vector, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, Corsair C70, HP ZR2440w, Win 7 Ult Ed x64
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