Help no display. Am i doing something wrong?

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Tony Mountain

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Nov 28, 2013
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i have a AsRock FM2A75 PRO4 with amd a10 chip. I have put 2 hd7870's in crossfire mode. But I cannot get any sockets on the back to display. The only board that works is the onboard one that came with the motherboard. I have even told the bios to boot PCIe first to no avail. I have the PCIe power plugged into each card as well. It's as if Windoze 8.1 cannot see it. Any help is appreciated ;-(
 
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akensai

akensai

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Nov 17, 2013
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What is your PSU?

Try running a single 7870 in the first PCI-E 2.0 x16 slot, if it works, switch it out for the second, if both work separately they aren't getting enough power in CF.

Also, if one does work and you have not already, download and install drivers before putting second card back in with the CF bridge.
 
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