3 way crossfire not working.

JuniorDDavis

Honorable
Dec 4, 2013
4
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10,510
I have 3 MSI RD 280x with pci-e risers. For some reason 1 of the cards doesn't want to show up. After installing them it made me reinstall catalyst. I'm running the latest version.

I have the Rosewill BRONZE Series RBR1000-M 1000W

http://www.newegg.com/Product/Product.aspx?Item=N82E16817182188

The 2 that are working are hooked up to the modular PCI red pins and the one that isn't is hooked up directly to the PSU.

The fans are spinning but for some reason it just doesn't want to show up through CPU-z and when I mine coins it's not showing up in CGminer either.

So what gives?

do the risers have to be in order? Or can they just hook up to any pci slot.

Any help is appreciated thanks.
 

JuniorDDavis

Honorable
Dec 4, 2013
4
0
10,510
I've ruled out the risers, The Crossfire bridge, The PCI ports and I switched over to the 4 pin to PCI cables to rule out the direct PSU cables. Not quite sure what's going on.