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  1. #1
    ROG Enthusiast Array kaese PC Specs
    kaese PC Specs
    MotherboardX99 Rampage V Extreme
    Processor5820K

    Join Date
    Oct 2014
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    5820K OC: rock stable only up to 12 threads

    Hello guys I have an interesting behaviour on my System (CPU 5820K@4.5 GHz, RAM 2600 MHz 64GB in 8 banks, 100 strap).
    Running 12 threads is definitely rock stable (running over 1000 hours without any problems).
    But when there are more than 12 threads running (lets say 18 threads), some instabilities do occur (about 1 error per 25 hours of operation. Error can be bluescreen or program close).
    So my question is what is likely the origin of the unstability? What differences in operation patterns chracterize the running of more threads than cores? Which screw should I tune to achieve 12+ threads stability?

  2. #2
    ROG Guru: Grand Master Array Arne Saknussemm PC Specs
    Arne Saknussemm PC Specs
    Laptop (Model)Laptop?...No way! (Model?...Jun Amaki...yes way!)
    MotherboardROG ZENITH II EXTREME
    ProcessorTHREADRIPPER 3960X
    Memory (part number)TXBD48G4000HC18FBK
    Graphics Card #1GTX Titan X
    Graphics Card #2SLI is dead to me
    Graphics Card #3Tri SLI is even dead to Nvidia
    Graphics Card #4Quad SLI is dead to everybody especially my credit card
    Sound CardXonar Essence STX
    MonitorASUS ROG Swift PG279Q
    Storage #1Samsung 970/960/950 PRO
    Storage #22x OCZ VERTEX 3/2x WD Caviar Black 500GB / 2x WD RED 2TB/Samsung 1TBSSDs
    CPU CoolerCustom Loop: Dual D5s, Dual Alphacool Monsta 480s, XSPC Raystorm Neo TR4, EK TitanX WaterBlock
    CaseNope!...Dimastech Easy XL...let it all hang out man!
    Power SupplySeasonic 1000 Platinum
    Keyboard Corsair Strafe MK2 ROG Claymore... or Fender Rhodes Electric Piano (MKI 73)
    Mouse Corsair M65Pro or Speedy Gonzalez...not Mickey...don't do Disney!
    Headset ...firmly on neck
    Mouse Pad Mouse don't got his own pad man...lives with me
    Headset/Speakers Edifier Spinnaker...or you mean the speakers in my head...man too many voices to name them all
    OS Win XP, 7, 8, 8.1 and Windows 10 Spyware Edition
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    Accessory #3 3 accessories?! I'm not a girl!!
    Arne Saknussemm's Avatar
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    Apr 2012
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    Overclocking can cause instability...does this happen at stock CPU...stock ram...both? If not you will have the "screw" identified...

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