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  1. #1
    ROG Member Array dehinson PC Specs
    dehinson PC Specs
    MotherboardASUS Crosshair V Formula-Z FX990
    ProcessorAMD FX-8350 Black Edition Vishera 8-Core 4.0GHz*
    Memory (part number)993982
    Graphics Card #1EVGA GeForce GTX 760 Dual Superclocked w/ EVGA ACX
    Storage #1SAMSUNG 850 EVO MZ-75E500B/AM 2.5" 500GB
    CPU CoolerCORSAIR Hydro Series H105 Extreme Performance 240mm Liquid CPU Cooler
    CaseLian Li PC-A79B
    Power SupplyEVGA 220-P2-1200-X1 1200W ATX12V / EPS12V

    Join Date
    May 2015
    Reputation
    10
    Posts
    10

    New Build, No Post with CPU Led Red Problem

    Hello All,

    I just finished putting together my first AMD rig. The core components are : ASUS Crosshair V Formula-Z FX990 motherboard, AMD FX8350 Black Edition cpu, Mushkin Enhanced Redline 16GB DD3 1600 and CORSAIR Hydro Series H105 cpu cooler.

    After putting it all together and rechecking all connection, I fired the puppy up. And what do I get, nothing. Well Ok, not exactly nothing... when I power up the psu (EVGA 220-P2-1200-X1 1200W ATX12V / EPS12V), the motherboard lights come on, looking good. Then when I press the start button, the fans start, then Q-LED shows FF, the cpu led turns red and then nothing. The fans stop but the lights on the motherboard are still on.

    So, I checked many forums and tried several things. Rechecking connections again, unconnect case connections (power, reset, etc). Still the same.

    How can I tell what is the actual issue? I mean you have the CPU led but that in itself doesn't really point to anything... or does it mean that the cpu is bad?

  2. #2
    ROG Guru: Brown Belt Array MeanMachine PC Specs
    MeanMachine PC Specs
    Laptop (Model)I enjoy my wife
    MotherboardCVI HERO + CVII Hero Wifi
    ProcessorRyzen 7 1800X + 2700X
    Memory (part number)CMD16GX4M2B3000C15 + F4-3200C14D-16GTZR
    Graphics Card #1EVGA GTX980 SC for CVFZ
    Graphics Card #2EVGA GTX 1080 hybrid
    Graphics Card #3GTX 770 for phys x
    Sound CardMB
    MonitorHP w2408h
    Storage #1Samsung 970 EVO 500GB M.2
    Storage #2Samsung 840EVO 500GB and 960 M.2 pro
    CPU CoolerCorsair H105, H110 and H115i
    CaseCorsair 750D and 780T
    Power SupplyCorsair AX-1200i and Antec 850 pro platinum
    Keyboard Logitech K800
    Mouse Razer Mamba
    Headset Corsair Vengeance 2100
    OS W7 Ultimate 64bit and W10 pro 64bit
    Network RouterNetcom Wireless NF18ACV
    MeanMachine's Avatar
    Join Date
    Apr 2014
    Reputation
    126
    Posts
    1,687

    Hi dehinson and Welcome to ROG

    The dreaded FF qcode can be difficult to determine but usually means a fault has been found.

    Should this error stop code persist, you will have to bench test outside your case, however you can initially try the following.

    Ensure your Bios is up to date. Use the flashback port on your IO panel.
    Ensurer both 8pin and 4pin sockets on the MB are populated.
    Make sure your DIMMs are compatible and listed on the ASUS QVL.
    Try installing just 1 Dimm in the A2 socket to initially post with.
    Try to post with peripherals, GPU and drives disconnected, to see if QCode led advances or shows a different error.


    Have you seen this post, It may help: http://rog.asus.com/forum/showthread...-VGA-Led-on-go

    Hope this helps and please report back.

    MM
    We owe our existence to the scum of the earth, Cyanobacteria

    My System Specs:

    MB:ASUS ROG Crosshair VII Hero/WiFi GPU:EVGA GTX 1080 sc PSU:Corsair AX-1200i
    CPU:
    AMD R7 2700X Cooler: Corsair Hydro H115i Case: Corsair Carbide 780t

    Memory:G.Skill TridentZ F4-3200C14D-16GTZR SSD:Samsung 500GB 960 EVO M.2



  3. #3
    ROG Member Array dehinson PC Specs
    dehinson PC Specs
    MotherboardASUS Crosshair V Formula-Z FX990
    ProcessorAMD FX-8350 Black Edition Vishera 8-Core 4.0GHz*
    Memory (part number)993982
    Graphics Card #1EVGA GeForce GTX 760 Dual Superclocked w/ EVGA ACX
    Storage #1SAMSUNG 850 EVO MZ-75E500B/AM 2.5" 500GB
    CPU CoolerCORSAIR Hydro Series H105 Extreme Performance 240mm Liquid CPU Cooler
    CaseLian Li PC-A79B
    Power SupplyEVGA 220-P2-1200-X1 1200W ATX12V / EPS12V

    Join Date
    May 2015
    Reputation
    10
    Posts
    10

    Found the problem. The Dell temperature sensors I was using caused the issue. I am now escalating with ASUS to find the correct cables and where to buy them.

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