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  1. #1
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    Maximus Code XI booting fully with no video out after swapping PSU

    Lots of weird behavior from this MB. It really is driving me nuts.
    After swapping to a new PSU and booting the system there is no video out.
    I can hear Windows intro jingle so it boots all the way to windows login, but no video out via GPU display port.
    I tried pulling all cables and re-seating the GPU but no change.

    Had to pull the CMOS battery to get access to internal graphics over HDMI, and then the video was working via display port from the GPU...

  2. #2
    ROG Guru: Orange Belt Array rjbarker PC Specs
    rjbarker PC Specs
    MotherboardMaximus XI Extreme (BIOS 0605)
    Processor9900K @ 5.1 Ghz w EK Velocity
    Memory (part number)32 GB -Dominator Platinum 3200 Mhz CAS 16
    Graphics Card #1Evga RTX 3080 FTW3 Ultra w FC EKWB
    Sound CardOnboard Realtek
    MonitorDell Alienware 34" Ultra wide 120Hz Gsync
    Storage #1Samsung 970 Pro 512G M.2 NNMe
    Storage #2Samsung 860 Pro 512G & 256G
    CPU CoolerEK Supremacy Copper w Nickel Plating
    CaseCorsair 900D
    Power SupplyCorsair AX 1600i
    OS W10 HP x64 - 20H2
    Accessory #1 480 * 360 * 240 XSPC Radiators (15 Fans) w 4 Channel 200W Fan Controller
    Accessory #2 XSPC Photon Rez / Vario Pump combo
    Accessory #3 Fesser Flex Tubing - Bits Power Fittings & EK SLi Terminal
    rjbarker's Avatar
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    May 2013
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    Check that your PCI-E cables are firmly seated in your PSU !

    Sounds to me like your GPU isnt getting the appropriate power. Ive seen this before...turned out to be a loose :PCI-E cable on the end that plugs into
    PSU

  3. #3
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    It was getting appropriate power and both LEDs lit up indicating so.
    I changed nothing. Just booted up with internal graphics and then it worked to switch back.

  4. #4
    ROG Guru: Orange Belt Array rjbarker PC Specs
    rjbarker PC Specs
    MotherboardMaximus XI Extreme (BIOS 0605)
    Processor9900K @ 5.1 Ghz w EK Velocity
    Memory (part number)32 GB -Dominator Platinum 3200 Mhz CAS 16
    Graphics Card #1Evga RTX 3080 FTW3 Ultra w FC EKWB
    Sound CardOnboard Realtek
    MonitorDell Alienware 34" Ultra wide 120Hz Gsync
    Storage #1Samsung 970 Pro 512G M.2 NNMe
    Storage #2Samsung 860 Pro 512G & 256G
    CPU CoolerEK Supremacy Copper w Nickel Plating
    CaseCorsair 900D
    Power SupplyCorsair AX 1600i
    OS W10 HP x64 - 20H2
    Accessory #1 480 * 360 * 240 XSPC Radiators (15 Fans) w 4 Channel 200W Fan Controller
    Accessory #2 XSPC Photon Rez / Vario Pump combo
    Accessory #3 Fesser Flex Tubing - Bits Power Fittings & EK SLi Terminal
    rjbarker's Avatar
    Join Date
    May 2013
    Reputation
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    Posts
    291

    Quote Originally Posted by Sineira1 View Post
    It was getting appropriate power and both LEDs lit up indicating so.
    I changed nothing. Just booted up with internal graphics and then it worked to switch back.
    The LED's lighting up only means the GPU's are getting "some" power.....black screen means not enough and the culprit "can" be one of the 2 cables not seated properly....glad you got it sorted !!!

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