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Thread: Radeon R9 390 not detected in new build

  1. #1
    Join Date
    Oct 2015

    Default Radeon R9 390 not detected in new build

    This is my first build since I put together a 486 machine. I guess that dates me. I have a Strix-R9390-DC30C-8GD5-Gaming board mounted on an Asrock 970 Extreme4 mother board. When I power up the machine, Mr. Debug reports a D6 error and I get 5 beeps. I also noticed that the fans for the GPU do not turn when the machine is started. The GPU has a 6 and 8 pin header. i have connected the 6 pin power supply to the matching header. I have no cable from my power supply to match the 8 pin header so I am assuming that I only need one or the other. However, I see a white led next to to the connected 6 pin header and a red led next to the unconnected 8 pin unconnected header. This leads me to wonder if I am suppose to have something connected to the 8 pin as well. This also leads me to wonder if the unconnected header is the reason that the GPU fans do not turn. Thank you for your assistance.
    Last edited by dallypost; 10-23-2015 at 01:44 AM.

  2. #2
    Join Date
    Aug 2009
    Birmingham,Great Britain

    Default Re: Radeon R9 390 not detected in new build

    yes you probably need all power connectors for the gpu,either buy a psu that has them or a molex to 8pin adaptor(although that's not an ideal solution)
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