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Crossfire help.

Last response: in Graphics & Displays
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January 2, 2012 4:28:32 AM

So I just got my second 6950 in the mail. I plugged it in and only have 1 Crossfire bridge and put that in. When I turn on my PC, only 1 (Middle) out of 3 monitors turn on and when I check the device manager, I only see 1 'AMD Radeon 6900 series'.

Am I supposed to see 2 and is it mandatory to have 2 Crossfire bridges to get both cards working?

Thanks in advance.

EDIT:

Power Supply: 850 watts
GPU's: (Both) VisionTek 6950 (2GB)

More about : crossfire

January 2, 2012 4:43:36 AM

what motherboard do you have
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January 2, 2012 4:46:31 AM

ASUS P67 Sabertooth
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January 2, 2012 4:47:40 AM

Do you have the latest drivers installed?
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January 2, 2012 4:59:24 AM

try removing it and reinserting it and make sure everything is securely in
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January 2, 2012 5:25:24 AM

Just did, both cards have power but still no luck. I went to CCC as well and can't find an options to enable Crossfire.

EDIT: I still see only 1 card being shown in Device Manager.
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January 2, 2012 5:38:01 AM

what version is your ccc
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January 2, 2012 5:49:36 AM

are the fan(s) on the second one(new one) spinning
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January 2, 2012 6:02:20 AM

Trying putting the cards in seperately

If the fan isnt spinning it could be one of two things.

Card is dead

Or port on your mobo is dead
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January 2, 2012 6:02:36 AM

The GPU's turn on. I put one GPU in and checked if the monitors turned on, they did. I put in the second one and that monitor worked properly as well.

But to be brief, yes, the fans did spin.

Both PCIe slots and GPU's are working properly.
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January 2, 2012 6:05:50 AM

did you forget the crossfire bridge between both cards?
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January 2, 2012 6:08:55 AM

Crossfire bridge is in as well.
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January 2, 2012 6:12:43 AM

what brand is the psu
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January 2, 2012 6:12:47 AM

ravesaint5 said:
Crossfire bridge is in as well.



Do you have an extra bridge? Try swapping it if you do
Might be a defective bridge or if anything defective pins on the gfx crossfire pins?
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January 2, 2012 6:18:01 AM

and try different combos like try your other cable like try the front bridge spots then also try the one behind it
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January 2, 2012 6:26:36 AM

I don't have an extra Crossfire bridge.

My PSU manufacturer is Thermaltake.

demar3214 said:
and try different combos like try your other cable like try the front bridge spots then also try the one behind it


I've tried that. Nothing.
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January 2, 2012 6:33:37 AM

Take off the crossfire bridge and see if both cards are recognized by Windows at the same time.
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January 2, 2012 6:35:55 AM

Well, youre gonna hate me for this.

Have you tried restarting your computer?
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January 2, 2012 6:36:21 AM

I've tried that, only recognized one still.

And yes ferin, I have lol.
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January 2, 2012 6:38:02 AM

what windows version are you using?
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January 2, 2012 6:38:47 AM

Hmmm, I had problems with a pair of 5850's, one would randomly stop being recognized, but if I removed the bridge they would always both be recognized just fine. I would contact your customer support for your motherboard at this point, kind of baffling, sorry.
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January 2, 2012 6:45:12 AM

Windows 7 64x.

And I have called ASUS and ATI but they're closed for the holidays... VisionTek is my last hope. I hope they're not closed as well.
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January 2, 2012 5:43:47 PM

No one else has any suggestions? :( 
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January 2, 2012 10:23:06 PM

have you tried the first gpu in the slot your putting the new one in.
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January 2, 2012 10:42:21 PM

In the bios is the 2nd PCI-E slot disabled?
Sometimes its factory set like that.
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January 4, 2012 9:45:33 PM

@Demar3214, Yes, I've tried.
@Ferinthul, I'll check that now.
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!