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  1. #1
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    Problems stabilizing FX-9590 on Crosshair V Formula Z

    Hey there folks! I understand many of you have been able to get the 9590 running just fine on the Crosshair V Formula Z, so I'm reaching out for some help.

    My current configuration is as follows:

    Motherboard Rev: 1.01
    BIOS Rev: 2101

    Power Supply:
    Corsair AX1500i

    CPU Cooler:
    Corsair H110

    Video:
    SAPPHIRE R9 295x2
    Driver: 14.10.1006-140417a-171099C

    Memory:
    G.Skill F3-1866C8-8GTX
    Size: 8GBx2 (16GB total)

    Disk:
    SSD: Samsung 840 EVO MZ-7TE500BW

    OS: Windows 8.1 64bit

    BIOS Settings all default except the following:
    Ai Overclock Tuner: D.O.C.P
    DRAM O.C. Profile: Profile #1
    Memory Frequency: DDR3-1866MHz
    DRAM Voltage: 1.60000

    While idling in Windows with the above configuration, the system temporarily pauses/freezes for up to 15 seconds every couple of minutes, and then mysteriously recovers. Upon further investigation, I found that these periodic freezes were related to Turbo Core.
    It appears that when the system increases frequency to 5GHz, the system is likely to temporarily hang until it drops back down to 4.7GHz. I have tried the following BIOS settings to resolve this issue with no change in behavior or improvement:

    Setting CPU voltage to 1.493750 with Load Line Calibration set to both High and Ultra High.
    Setting CPU voltage to 1.50000 with Load Line Calibration also set to both High and Ultra High.

    Disabling Turbo Core and leaving all other CPU and power related BIOS settings at defaults resolves the temporary hangs/pauses, however the system will not run Prime95 for more than an hour before the system hard locks.
    During the Prime95 run, the CPU frequency bounced between 4.0GHz and 4.5GHz, and the temp hovered in the mid 50s, so I'm completely baffled as to why it would crater.

    My last ditch effort to get stability was to set everything manually. Here's what I set the CPU settings in the BIOS to:

    Turbo Core: Disabled
    CPU Ratio: 23.5
    CPU Manual Voltage: 1.493750
    Load Line Calibration: High

    With the above settings, the system is almost stable. It will run prime95 for three hours before a random thread or two will die with a rounding error, but the other threads continue running. Temps during this run did get a little on the hot side, peaking in the low 70s.

    Given all that, I decided that the CPU or the PSU were probably bad, so I RMA'd both and received brand-shiny-new ones. Sadly, I'm having the exact same problems with the new 9590. Why me?

    One last, and highly interesting data point is that I obtained a new FX-8350 for comparison sake, and it runs perfectly stable at 4.7GHz 1.493750v with LLC set to high. I was able to get a 12 hour prime95 run in with all threads humming away perfectly, albeit slightly hot. During the 12 hour run, CPU temp would reach into the low 70s. I was not able to push it any higher than 4.7GHz without it crashing a few seconds or minutes after applying load.

    How odd that the board freaks out when I run the 9590, but seems more than happy to run the 8350 at 4.7GHz.

    So 9590 + Crosshair V Formula Z people, what in the name of all that's good am I doing wrong? Could some of you stable guys share your BIOS settings and/or ideas as to why this might be happening? I'm at a loss.
    Last edited by 2dcomplex; 06-28-2014 at 07:41 PM.

  2. #2
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    Just for the heck of it, here's a picture showing how everything is connected up, physically anyway.

    Click image for larger version. 

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  3. #3
    AntiMatter Guru ROG Array chrsplmr's Avatar
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    2Dc .. Welcome to ROG.
    Is the aux power plug populated (left center of board, above gpu) ? .c.

  4. #4
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    That's a good question. I did connect the molex connector to supply additional power to the PCIe for the 'amost stable' run I described, but it didn't seem to make a difference so I disconnected it. I imagine this would only be of some help with the video card under load. When the card is idle, the driver disables one of the two Hawaii cores so it doesn't draw much power at all.

    Seeing the 295x2 draws more power from the PCIe than the spec recommends, I will go ahead and re-connect it. It certainly can't hurt.

  5. #5
    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
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    Storage #2Samsung 840EVO 500GB and 960 M.2 pro
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    CaseCorsair 750D and 780T
    Power SupplyCorsair AX-1200i and Antec 850 pro platinum
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    You will definitely require the EZ Plug connected. To attain 5.2GHz on my machine I increased voltage to cpu in small increments until I achieved stability.

    If you post pics of your Bios settings it will better help determine, compare and tweak. The FX-9590 is a beast and voltage changes make a diff but watch your temps.

    I have 24/7 stability @5.2 GHz, Playing high end games and still fail Prime95 after extended runs. Not saying its a bad product but it is a harsh stress tester and the algorithm will increase load after each pass.
    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



  6. #6
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    Well, I have some good news. It looks like I have managed to achieve stability at base clock. I don't know if others have had the same experience, and perhaps I am just unlucky, but I find it highly unusual that I basically had to treat the settings as if I was overclocking the processor. I fully expected this chip to run on the Formula-Z at stock frequencies with all CPU and power settings at auto/defaults, but apparently that expectation was unrealistic. Neither of the two 9590s I have owned will run without heavy changes to the BIOS settings.

    I understand where you're coming from MeanMachine, but I tend to use my systems for harsh scientific computing when I'm not doing things like gaming, so I figured Prime95 was the way to go in order to ensure long-term stability.

    On the off chance that it will help others, I will go ahead and share my BIOS screens. It's highly possible (even likely) that many of these settings are overkill or unnecessary because admittedly I am not sure which one did the trick; I'm going to assume it was the DIGI+ power settings and CPU voltage. If any of you have additional suggestions to make, please let me know. It might be nice to reach higher than 4.7GHz, but for now I am going to leave it as-is.

    Click image for larger version. 

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    Last edited by 2dcomplex; 07-01-2014 at 01:30 AM.

  7. #7
    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
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    Glad to see you have it sorted 2dcomplex and thanks for reporting back.

    Have you tried to increase CPU ratio to 25x at same voltage?
    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



  8. #8
    ROG Guru: Yellow Belt Array chris635 PC Specs
    chris635 PC Specs
    MotherboardCrosshair V Formula Z
    ProcessorFX 8350 (at 5016 GHZ)
    Memory (part number)Gskill Trident 16 gb (at 2432 mhz)
    Graphics Card #1Asus Direct CUII 660ti
    Graphics Card #2Asus Direct CUII 660ti
    Sound CardAsus Xonar Essence STX
    MonitorAsus VG278HE 27"
    Storage #1OCZ Vertex 4 120 gb (OS Drive)
    Storage #21Tb Seagate Baracuda's X5, 1 2Tb Baracuda
    CPU CoolerCustom Water Loop
    CaseCorsair 800D
    Power SupplyEVGA 1000 Watt Supernova
    Keyboard Razer BlackWidow
    Mouse Razer Death Adder
    Headset Sennheiser HD 598, Razer Carcharias
    OS Windows 7 Home Premium 64 Bit
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    Not sure if this helps but.....for my system to be stable with my ram configuration I need about 1.3v on the cpu/nb with the llc for it set to extreme which will pump it to 1.38v depending on load (I do use off set mode though). Anything less and I will get random crashes. This will increase temperatures. If you try this, keep an eye on temps
    Chris...Have a nice day.

  9. #9
    ROG Guru: Grand Master Array HiVizMan's Avatar
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    Cheers for the update mate - nice build too.
    To help us help you - please provide as much information about your system and the problem as possible.

  10. #10
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    Hey 2Dcomplex, just wondering I see where you are having the high heat issues, not sure if you still are but from what I can see in your pic it looks like you have your fans set to exhaust on the CPU and GPU Radiator Fans? If so try setting them to intake as pulling cool air from outside instead of pushing hot are through the already hot radiators you should get a big drop in temp as I did this when my Temps where that high on my old system.
    Just checkin. Good Luck, Nice build almost as Purdy as mine

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