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Title: ASRock 970 Extreme 3 and not more than 2 7950s running Post by: Igotcha on May 27, 2013, 05:57:56 PM Hi,
I try to run 3 x 7950 on my ASRock MB with riser cables. Two cards run fine on the two PCI-E x 1 slots but when I try to add the 3rd card on a PCI-E x 16 or in the PCI-E slot on the board the PC isn't booting anymore. It seems that the PCI-E x 16 slots are not recognized. Do I need a powered PCI-E x 16 cable or is there something else I can setup in BIOS or on the board itself? Edit: I have a 1.200 PSU, so that shouldn't be the problem. Thanks! Title: Re: ASRock 970 Extreme 3 and not more than 2 7950s running Post by: Igotcha on May 27, 2013, 07:21:07 PM I quick built me a powered riser cable and it works now.
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