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Thread: ASROCK 880GMH/U3S3 no function with Radeon 7790

  1. #1
    Join Date
    Aug 2013

    Default ASROCK 880GMH/U3S3 no function with Radeon 7790

    hi this is my system :

    asrock 880GMH/U3S3 Pro3 Bios 1.8
    power supply Sharkoon 500W WPM500

    cpu AMD X2 280 3.2 ghz

    120GB HDD

    RAM DDR3 2 x 4GB GSkill Rigjaw

    I installed an HIS ATI HD 7790 iCooler Turbo 1GB GDDR5 PCI-E

    The screen is always black. The CPU fan and VGA fan are running. Power supply is strong enough and the connections are tight, the HIs is connectet via 6-Pin connector to Power supply.....i tried other Cards on the mainboard...they are working.

    The HIS Graphiccard is working on other Mainboards but not on the ASROCK 880GMH. I tried to disable internal VGA but it doesnt help.

    Can anyone help please ???


  2. #2
    Join Date
    Oct 2013

    Default Re: ASROCK 880GMH/U3S3 no function with Radeon 7790

    Got the same problem with my PowerColor HD7950PCS+. Same Motherboard. Newest BIOS 1.80. I tried several things like CMOS resets, other cables, latest drivers, some BIOS settings. Nothing works.

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