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  1. #1
    ROG Enthusiast Array zocker's Avatar
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    DPC Latency Issue

    I think many do not know about this problem but most of them have it.
    Sometimes i have a light cracking or dropouts like a dirty CD when i watching youtube streams or videos.
    I try to figure out and i startet DPC LATENCY CHECKER and this is what i see this:



    Sometimes i get peaks over 2000 and then i have the sound issues.

    This is my second system that has this issue.

    The first time i had this issue, i have uninstalled asus ram cache and its gone.
    I thought it was the fix but aftere a few days it begins again.
    i am going crazy

  2. #2
    ROG Guru: Black Belt Array Korth PC Specs
    Korth PC Specs
    MotherboardASUS X99 R5E (BIOS2101/1902)
    ProcessorHaswell-EP E5-1680-3 SR20H/R2 (4.4GHz)
    Memory (part number)Vengeance LPX 4x8GB SS DDR4-3000 (CMK32GX4M4C3000C15)
    Graphics Card #1NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Graphics Card #2NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Sound CardJDS Labs O2+ODAC (RevB), USB2 UAC1
    MonitorASUS PG278Q
    Storage #1Samsung 850 PRO 512GB SSDs, 4xSATA3 RAID0
    Storage #2Comay BladeDrive E28 3200GB SSD, 8xPCIe2
    CPU CoolerRaijintek NEMESIS/TISIS, AS5, 2xNH-A14
    CaseObsidian 750D (original), 6xNH-A14
    Power SupplyZalman/FSP ZM1250 Platinum
    Headset Pilot P51 PTT *modded*
    OS Arch, Gentoo, Win7x64, Win10x64
    Network RouterActiontec T3200M VDSL2 Gateway
    Accessory #1 TP-Link AC1900 Archer T9E, 1xPCIe
    Accessory #2 ASUS/Infineon SLB9635 TPM (TT1.2/FW3.19)
    Accessory #3 ASUS OC Panel I (FW0501)
    Korth's Avatar
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    Are you using CorsairLink?
    "All opinions are not equal. Some are a very great deal more robust, sophisticated and well supported in logic and argument than others." - Douglas Adams

    [/Korth]

  3. #3
    ROG Enthusiast Array zocker's Avatar
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    No, but icue....i uninsstalled it and no luck.
    I have disabled all tools that i use all day but nothing changes.

  4. #4
    ROG Guru: Black Belt Array Korth PC Specs
    Korth PC Specs
    MotherboardASUS X99 R5E (BIOS2101/1902)
    ProcessorHaswell-EP E5-1680-3 SR20H/R2 (4.4GHz)
    Memory (part number)Vengeance LPX 4x8GB SS DDR4-3000 (CMK32GX4M4C3000C15)
    Graphics Card #1NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Graphics Card #2NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Sound CardJDS Labs O2+ODAC (RevB), USB2 UAC1
    MonitorASUS PG278Q
    Storage #1Samsung 850 PRO 512GB SSDs, 4xSATA3 RAID0
    Storage #2Comay BladeDrive E28 3200GB SSD, 8xPCIe2
    CPU CoolerRaijintek NEMESIS/TISIS, AS5, 2xNH-A14
    CaseObsidian 750D (original), 6xNH-A14
    Power SupplyZalman/FSP ZM1250 Platinum
    Headset Pilot P51 PTT *modded*
    OS Arch, Gentoo, Win7x64, Win10x64
    Network RouterActiontec T3200M VDSL2 Gateway
    Accessory #1 TP-Link AC1900 Archer T9E, 1xPCIe
    Accessory #2 ASUS/Infineon SLB9635 TPM (TT1.2/FW3.19)
    Accessory #3 ASUS OC Panel I (FW0501)
    Korth's Avatar
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    It could be DPC Latency Checker itself. Have you tried running LatencyMon instead?

    https://www.sweetwater.com/sweetcare...atency-issues/

    In my experience it's usually been CorsairLink (solved by avoiding Corsair junk) or DirectX issues (solved with driver update or driver rollback) or obnoxious USB devices (solved by getting rid of them). It happens a lot more on hardware-heavy systems and a lot less on systems which don't saturate the chipset-to-CPU bandwidth.

    What are your system specs?
    "All opinions are not equal. Some are a very great deal more robust, sophisticated and well supported in logic and argument than others." - Douglas Adams

    [/Korth]

  5. #5
    ROG Enthusiast Array zocker's Avatar
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    7820x
    Apex VI Rampage
    32GB Corsair Vengeance 4x8
    SB ZxR
    Samsung Evo 960 M.2
    Asus Dual 2080 Ti

    I have tried LatencyMon a few times and sooner or later the dxgkrnl.sys kicks out into red area.

  6. #6
    ROG Guru: Black Belt Array Korth PC Specs
    Korth PC Specs
    MotherboardASUS X99 R5E (BIOS2101/1902)
    ProcessorHaswell-EP E5-1680-3 SR20H/R2 (4.4GHz)
    Memory (part number)Vengeance LPX 4x8GB SS DDR4-3000 (CMK32GX4M4C3000C15)
    Graphics Card #1NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Graphics Card #2NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Sound CardJDS Labs O2+ODAC (RevB), USB2 UAC1
    MonitorASUS PG278Q
    Storage #1Samsung 850 PRO 512GB SSDs, 4xSATA3 RAID0
    Storage #2Comay BladeDrive E28 3200GB SSD, 8xPCIe2
    CPU CoolerRaijintek NEMESIS/TISIS, AS5, 2xNH-A14
    CaseObsidian 750D (original), 6xNH-A14
    Power SupplyZalman/FSP ZM1250 Platinum
    Headset Pilot P51 PTT *modded*
    OS Arch, Gentoo, Win7x64, Win10x64
    Network RouterActiontec T3200M VDSL2 Gateway
    Accessory #1 TP-Link AC1900 Archer T9E, 1xPCIe
    Accessory #2 ASUS/Infineon SLB9635 TPM (TT1.2/FW3.19)
    Accessory #3 ASUS OC Panel I (FW0501)
    Korth's Avatar
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    dxgkrnl.sys is a DirectX component.

    Installed the chipset, audio, LAN, and WiFi drivers from your motherboard support page?

    Are you confident the system is clean, not running any malware?

    Are there any IRQ conflicts in Device Manager?

    If you boot Windows into Safe Mode (minimum drivers), are there any IRQ conflicts in Device Manager?

    You can try newer/better drivers from the ASMedia and Realtek sites. You can try moving your USB devices to different ports or unplugging them all (except keyboard and mouse). You can try removing the soundcard. If any of these things resolves the DPC issues then you'll know the cause and might be able to find a solution ... if none of them resolves the DPC issues then you can be (reasonably) confident it's something to do with the NVidia/DX drivers.
    "All opinions are not equal. Some are a very great deal more robust, sophisticated and well supported in logic and argument than others." - Douglas Adams

    [/Korth]

  7. #7
    ROG Enthusiast Array zocker's Avatar
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    How can i see IRQ conflicts?!

    I have played arround and uninstalled, reinstalled some asus and intel tools.
    And i think the intel turbo boost 3.0 is the tool that makes trouble with the latency.
    Uninstalled it and nothing change, installed again, nothing.....installed another version and the latency goes down yeaah!!
    So i uninstalled it again to reconstruct it, i installed the last working version and the latency is worse again.
    After going crazy again, i make the install uninstall reinstall dance again and now the latency is again low!
    Oh man, what is that?! The whole install session seems triggering something but it is no solution for me.

  8. #8
    ROG Guru: Yellow Belt Array x-rated PC Specs
    x-rated PC Specs
    MotherboardAsus ROG Maximus XI Formula - Intel Z390
    ProcessorIntel Core i9-9900K @ 5 GHz
    Memory (part number)G.Skill Trident Z F4-3600C16D-16GTZR - 4x 8 GB, 4 GHz, 18-18-18-38
    Graphics Card #1Nvidia GeForce RTX 2080 Ti FE - 2,1/15,6 GHz
    Sound CardCreative Sound Blaster X-Fi Titanium HD
    MonitorDell UP2715K - 5120x2880, AH-IPS, 10bit
    Storage #1Samsung 960 Pro - 1 TB, 3,5/2,1 GB/s
    Storage #2WD Red WD40EFRX - 4 TB, 64 MB, 5400 RPM
    CaseFractal Design Define R6 Blackout TG
    Power SupplyCorsair HX1000i - 1 KW, 83 A, 80Plus Platinum
    Keyboard Logitech G810 Orion Spectrum
    Mouse Logitech G403 Prodigy Wired
    Headset Sennheiser HD 660 S
    Mouse Pad Razer Manticor
    OS Windows 10 Pro
    Network RouterHuawei HG8245H @ 1 Gb/s FTTH GPON
    Accessory #1 EKWB Velocity + Vector
    Accessory #2 EKWB XRES 140 Revo D5 PWM + 2x CoolStream XE 360
    Accessory #3 6x Noiseblocker NB-eLoop Fan B12-PS
    x-rated's Avatar
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    what is intel turbo boost tool and why do you install it?

  9. #9
    ROG Enthusiast Array zocker's Avatar
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    i dont really need that tool because i have overclocked my system but without it i have the problems what i explained.
    i think its for intels speed stepping.
    Last edited by zocker; 12-24-2018 at 12:05 AM.

  10. #10
    ROG Enthusiast Array zocker's Avatar
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    I figured ít out....its the nvida driver. When i uninstall it the latency goes dow.
    I have tried to install the driver only but it seems the driver itself is the problem.
    So what should i do?!! I need this driver. xDDDDD

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