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Windows 7: Crossfire help!!

19 Nov 2010   #1
atomfix

Windows 7 64bit
 
 
Crossfire help!!

I have 2 ATI 4830, one is plugged into PCIE X16 and the other is in PCIE X4.

I have the crossfire bridge connected and it worked first time and windows detected both cards and enabled CrossFireX through ATI CCC. Played a few games and it worked just fine. But i shut it down then because i went out, i come back to go back on and now it doesn't work.

Both cards start up just fine and it displays on the first card in the X16, but when i plug it into the card which is in the X4 it doesn't work.

So i swapped over the card which was in the X4 into the X16 slot and it worked fine, i plugged it back into the X4 slot whilst leave the X16 slot empty and it still displays fine. But when i plug both the cards back in, the card in the X4 slot doesn't want to display.

Device manager in Windows 7 only picks up 1 card. But the card which is not detected is heating up with the fan spinning, so it means it's working.

I'm at a big loss here and require some help lol!

My specs are >

AMD Phenom X6 1055T OC - 3.5GHz
AsRock M3A770DE
XFX Radeon 4830 512MB - Force3D Radeon 4830 512MB


My System SpecsSystem Spec
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19 Nov 2010   #2
Snakeyeskm

Win 7 64 bit professional
 
 

Does the Catalyst Control Center show crossfire as enabled? Have you installed the latest display drivers?
My System SpecsSystem Spec
19 Nov 2010   #3
atomfix

Windows 7 64bit
 
 

Nope. It did when I first put it in crossfire. But after shutdown and start back up, I lost the crossfire capability completely and device manager only shows 1 card.

I plugged the display port into the 2nd card and powered it back up again but nothing on the display.

Both of the cards work fine if only 1 is plugged in either of the pcie slots.

But when I plug 2 cards back in the other doesn't wont to work but its heating up fine so there is power.
My System SpecsSystem Spec
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20 Nov 2010   #4
atomfix

Windows 7 64bit
 
 

I give up and sending the motherboard back for RMA
My System SpecsSystem Spec
20 Nov 2010   #5
Corpsecrank

Win7 64bit Ultimate
 
 

Quote   Quote: Originally Posted by atomfix View Post
I give up and sending the motherboard back for RMA
There is probably no problem with your board. Some boards support x16+x4 crossfire while others must be x16+x16 which sounds like the case on yours. Personally I would have just used both 16 slots for the graphics because that is basically what they are there for.
My System SpecsSystem Spec
20 Nov 2010   #6
atomfix

Windows 7 64bit
 
 

Well, my motherboard only has one X16 and one X4 PCIE slots. Strangley that it works first time when i fit them in and enabled CrossFire and noticed about 15 FPS more in games. but after i shut it down and back on, the 2nd card that i put in, failed to start, "no display coming from it" unless i take my first card out.
My System SpecsSystem Spec
20 Nov 2010   #7
atomfix

Windows 7 64bit
 
 

I will say though which i nearly forgot.

Would increaseing the PCIE frequency have anything to do with it? because i did accidentlly increase the PCIE to 150MHz one time becasue i overclocked the FSB which bought the pcie up also when i left that Sync thingy on.

Would that have anything to do with it? Chipset damaged maybe?
My System SpecsSystem Spec
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 Crossfire help!!




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