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Crossfire 4870's

Last response: in Graphics & Displays
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January 29, 2011 6:12:32 AM

Hello all,

I really need some help. I had this card already
http://www.newegg.com/Product/Product.aspx?Item=N82E168... then I got this one
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
I have a GIGABYTE GA-EP45-UD3P mobo and have hooked everything up. I have the latest catalyst suite. but the option for enabling crossfire is just not there. I have googled to no avail, ccc will see both cards but the most I get is that it has the option of extend desktop on the second card, and that is only when I right click on the taskbar icon, in ccc software I don't see anything that shows I have a second card in. I have the bridge installed, just 1 right? all power cords are in on both cards. I have never crossfired before please help.

More about : crossfire 4870

a c 1408 U Graphics card
January 29, 2011 12:22:31 PM

Did you install the drivers before adding the second card? If so delete the drivers and reinstall.
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January 29, 2011 1:09:12 PM

After I installed the second card I rebooted to safe mode, used driver sweeper to delete ati drivers, then reinstalled ccc and 10.12 crossfire drivers in normal windows.
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January 29, 2011 1:51:53 PM

I tried the bridge on both connectors, neither worked. I read that after a certain ccc, 8. something, you don't use 2 bridges, is that right?
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a c 1408 U Graphics card
January 29, 2011 2:50:40 PM

1 bridge is enough 2 bridges can speed it up a little but create visual tearing.
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January 29, 2011 4:18:55 PM

One bridge it is then, but the question remains, why won't ccc give me the option of activating crossfire? what else could I do or check?
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!