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  1. #1
    ROG Guru: Yellow Belt Array Baio73 PC Specs
    Baio73 PC Specs
    MotherboardAsus ROG Crosshair VIII Formula BIOS 3402
    ProcessorAMD Ryzen 3900XT
    Memory (part number)2x8 Corsair 4000C19D
    Graphics Card #1Sapphire RX 5700XT
    MonitorLG 34GK950F
    Storage #1Samsung 980PRO 512Gb NVMe
    Storage #2WD Black SN850 2Tb NVMe
    CPU CoolerCorsair H150i Elite Capellix
    CaseLian Li 011D XL
    Power SupplyCorsair AX860i
    Keyboard Logitech G513
    Mouse Logitech G903 + Powerplay
    Headset G933 Artemis Spectrum
    Mouse Pad Corsair MM 700 RGB
    Headset/Speakers Logitech G560
    OS Windows 10 64bit
    Network RouterLynksys EA6500
    Accessory #1 Corsair Commander Pro
    Accessory #2 10xCorsair QL120 RGB fan

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    Crosshair V Formula Z and FF error

    Any update about the object?
    I installed my mobo a few days ago, worked fine for 4-5 hours, then (during a Windows Seven installaion reboot) it stucked with FF error code and the CPU led on.
    Tried a second CPU and a second stick of RAM, nothing changes.

    Baio

  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
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    Hi Baio73 and Welcome to ROG.


    The dreaded "FF" POST code, or no POST at all.
    This fix is best done outside a case to ensure the case isn't shorting the motherboard:

    Qcode: FF indicates Fault Found.

    1) If you know what burnt electronics smell like, then smell your motherboard. I'm not joking. Specifically around the VREG (left/above the socket), Southbridge (below the socket) and Chipset (right of the PCI slots) areas. If you smell burnt electronics, keep that in mind if you hit step (7b) below as that'll means its the motherboard 99.9% of the time.

    2) Test the PSU with a tester, if it's not beeping/blinking at you then it's ok. Unplug and re-plug the 24-pin connection several times. Keep an eye on the "PG" and see if it ever reports 0ms or 999ms as this means it's a bad PSU (since this is unloaded it won't fail the PSU tester every time even though it will fail the motherboard every time). If you don't have PSU tester, swap in your known-good PSU.

    3) With the PSU verified to be good, plug in ONLY the power to the motherboard (20+4-pin and 4/8-pin CPU power, but NOT the 4-pin molex connection if it has one). Disconnect EVERYTHING else from power (hard drives, DVD drives, etc).

    4) Remove all RAM. Remove all GPUs. Remove all other PCI/PCI-e cards. Unplug all the cables (including SATA, IDE, FDD, SAS, USB, Firewire, HD Audio, and all the switches but the power switch) from the motherboard. You should have just your MoBo, CPU, HSF, PSU and a power switch connected right now. Disconnect EVERYTHING from the front and back panels of the computer, including your mouse and keyboard.
    4a) if your computer does NOTHING when you hit the power button, plug the reset switch into the power switch pins on the motherboard and use the reset button in case the power button has gone bad - yes, it happens, no it won't damage anything.

    5) Remove the BIOS battery and leave it out until you're told to put it back in.

    6) Power on the computer. If it beeps or gives a POST code other than FF then go to (7a) below, if not check out (7b)

    7a) If it beeps at you, or gives any POST code other than FF then turn it back off. Leave the BIOS battery out. You will now add in 1 piece of hardware, power it on, check if it POSTs (and gives any error other than FF), if it does, turn it back off and add the next component. Start with RAM, one stick at a time, then GPUs, one at a time, then other expansion cards, finally HDDs/DVD drives - rebooting between each and every part.

    8a) If it starts giving an FF code or stops POSTing all together then the last component you added is bad.

    9a) If it doesn't give a FF error code and is still POSTing with all your hardware back in, shut it down again, put the BIOS battery back in and power back on one more time. If it gives an FF code now, replace your BIOS battery.

    10a) If it works with everything back in, then your motherboard lives to fight another day.

    7b) If it still POSTs as FF or not at all in this condition remove the CPU, make sure the pins are intact, reseat the CPU and HSF and try it again. If it still posts FF you either have a bad motherboard (about 95% of the time or about 100% if you smelled burnt electronics in step 1) or a bad CPU (about a 5% chance).

    8b) Swap in a known working motherboard if you have one to test the CPU is good, or bring in a spare CPU to test the motherboard with. Whichever part fails is the culprit, replace it and go again.

    As you see it can mean a number of things, so follow these steps and see how you go.
    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 Guru: Yellow Belt Array Baio73 PC Specs
    Baio73 PC Specs
    MotherboardAsus ROG Crosshair VIII Formula BIOS 3402
    ProcessorAMD Ryzen 3900XT
    Memory (part number)2x8 Corsair 4000C19D
    Graphics Card #1Sapphire RX 5700XT
    MonitorLG 34GK950F
    Storage #1Samsung 980PRO 512Gb NVMe
    Storage #2WD Black SN850 2Tb NVMe
    CPU CoolerCorsair H150i Elite Capellix
    CaseLian Li 011D XL
    Power SupplyCorsair AX860i
    Keyboard Logitech G513
    Mouse Logitech G903 + Powerplay
    Headset G933 Artemis Spectrum
    Mouse Pad Corsair MM 700 RGB
    Headset/Speakers Logitech G560
    OS Windows 10 64bit
    Network RouterLynksys EA6500
    Accessory #1 Corsair Commander Pro
    Accessory #2 10xCorsair QL120 RGB fan

    Join Date
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    MeanMachine,
    Thanks for your replay... that's a very good guide.
    just one question before starting... HSF stands for the CPU cooling system, right?

    Baio

  4. #4
    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
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    HSF stands for: Heat Sink Fan, Hope the Guide helps.
    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



  5. #5
    ROG Guru: Yellow Belt Array Baio73 PC Specs
    Baio73 PC Specs
    MotherboardAsus ROG Crosshair VIII Formula BIOS 3402
    ProcessorAMD Ryzen 3900XT
    Memory (part number)2x8 Corsair 4000C19D
    Graphics Card #1Sapphire RX 5700XT
    MonitorLG 34GK950F
    Storage #1Samsung 980PRO 512Gb NVMe
    Storage #2WD Black SN850 2Tb NVMe
    CPU CoolerCorsair H150i Elite Capellix
    CaseLian Li 011D XL
    Power SupplyCorsair AX860i
    Keyboard Logitech G513
    Mouse Logitech G903 + Powerplay
    Headset G933 Artemis Spectrum
    Mouse Pad Corsair MM 700 RGB
    Headset/Speakers Logitech G560
    OS Windows 10 64bit
    Network RouterLynksys EA6500
    Accessory #1 Corsair Commander Pro
    Accessory #2 10xCorsair QL120 RGB fan

    Join Date
    Jul 2014
    Reputation
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    Posts
    157

    MeanMachine thanks again for your support, nice to meet someone pleased to help!

    First of all, I don't know if it's my suggestion speaking, but I do smell some burnt electronics on the mobo... it's very light, but some days have passed since it failed... what sounds strange to me is that the day it stucked, I'm sure I didn't smell anything at all... and I've burned several pc-stuff in the past!

    Anyway I went through the rest of you guide, but got no luck... always "FF" error and the CPU led on. I tested all the components on the old mobo and they worked fine (CPU, RAM, PSU). On the other hand, the Formula Z does not work also with different CPU, RAM an PSU.

    I've started the RMA process (in Italy it will take 4-5 weeks plus August, that herearound is a completely dead month ), hope I'll have more luck with the next one.

    By the way, I'm very disappointed with Asus. You buy a TOP product and you don't really expect to use it for 4 hours... that's incredible to me! Besides, why put onboard an error display (2-3 pages of the manual filled with codes) if in such a case it just says to you "ok, I'm broken"?!??

    Baio

  6. #6
    ROG Guru: Orange Belt Array TheNerdBench's Avatar
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    Nicely done MM


    For trouble-shooting tips see my blog at:



    http://thenerdbench.blogspot.com/p/bench-testing.html



    MB: Crosshair V Formula-Z • CPU: FX-8350 • GPU: Asus Matrix R9 280x • RAM: 8GB of Crucial Ballistix Tactical Tracer (1866)• PSU: Thermaltake DPS Thoughpower 750 Watt • CPU Cooler: Thermaltake Frio Advanced • Keyboard: TT Sports Challanger Ultimate • Mouse: TT Sports Black Element • Case: Thermaltake GT Level 10


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