Crossfire msi hawk r9 270x help with xfx r9 270x

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Justsin8737

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Jul 2, 2015
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My mobo is crossfire ready, with amd a8, 20gb ddr3 gb ram ssd, or 2 tb drive depending which i need. in device manager seperatly i see each. When both are in it says r9 200 series, and catalyst has no option for it. I am nearly certain i have the latest drivers.and unless the r9 msi hawk is somehow not compatible with the xfx of the both 2 gb, msi is hawk, xfx is not. I need advice and help would be so very appreciated
 
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Supernova1138
You'd reinstall the drivers with both cards installed. You have two possible problems, your PSU probably isn't sufficient for running 2 R9 270xs and you might have a motherboard with a bad secondary PCI-E slot. Even a good quality 600 Watt PSU would probably struggle with two cards, so you're probably going to want to get a good quality 750 Watt PSU.

As for the second PCI-E slot, which motherboard do you have and do you have any other PCI-E cards aside from your GPUs eg. wireless card, PCI-E based SSD USB 3.0 add on or anything like that? If so, and you don't have a motherboard with a PCI-E lane splitter, then you might have a situation where the second PCI-E x16 slot will not work if any of the PCI-E x1 or x4 slots are populated...
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Supernova1138

Supernova1138

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Mar 22, 2011
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Did you install the Crossfire bridge ribbon cable? If not, you'll need one. If you have that all in place, then you might need to do a clean reinstall of your graphics drivers. Use Display Driver Uninstaller to completely remove the drivers and then install the latest Catalyst drivers and that should hopefully have Crossfire show up for you. Be aware that you are going to get hit pretty hard with a CPU bottleneck with an AMD A8, so do not expect your performance to double once Crossfire does start working.
 
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Justsin8737

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Jul 2, 2015
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thanks for the reply, I must have totally missed it.. I do have the bridge, but I have been very sidetracked so it's been just sitting there. however I have a 600w psu, and It did recognize it once briefly. but back to the same. I figure maybe I need more power, a new psu? the only other thing I can think is that something could be wrong with my second slot. if I put just 1 card in the bottom slot it doesn't recognize a card at all. should it be recognizing just one card in the second slot. that would mean a new mobo and I hope that's not the case. thanks again oh and as far as updating the drivers, do I install the drivers with both cards in, or install with one in, put the second in, and well not really sure there.
 
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Supernova1138

Supernova1138

Illustrious
Mar 22, 2011
5,340
54
37,690
You'd reinstall the drivers with both cards installed. You have two possible problems, your PSU probably isn't sufficient for running 2 R9 270xs and you might have a motherboard with a bad secondary PCI-E slot. Even a good quality 600 Watt PSU would probably struggle with two cards, so you're probably going to want to get a good quality 750 Watt PSU.

As for the second PCI-E slot, which motherboard do you have and do you have any other PCI-E cards aside from your GPUs eg. wireless card, PCI-E based SSD USB 3.0 add on or anything like that? If so, and you don't have a motherboard with a PCI-E lane splitter, then you might have a situation where the second PCI-E x16 slot will not work if any of the PCI-E x1 or x4 slots are populated. That would also mean that you probably shouldn't even bother with Crossfire as the second PCI-E x16 slot will only work at x4 speeds due to getting the PCI-E lanes from the chipset instead of the CPU.
 
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