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Thread: Ga-EP35-DS3L DPC Issue




  1. #1
    anonbeatz is offline Junior Member
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    Default Ga-EP35-DS3L DPC Issue

    Hey guys i have a GA-EP35-DS3L I am currenty running Bios version F6.I have a Antec 550w PSU with a ati4850hd gfx card. I am noticing that when i move my mouse or type on my keyboard that My Dpc Latency goes up from 12 to 80 or 90. It esp goes up when i have my wireless g usb network adapter enabled.

    I ran LatencyMon and it said USBPORT.sys uses the most execution timing. I updated all my chipset drivers and all m hardware drivers I shut off all powersaving options in windows 7 and any cpu throttling in the bios. I even disable HPET CIEST ect.

    Its just seems to spike when using my mouse or keyboard (both being usb).

    Thanks for any help!

  2. #2
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    Default Re: Ga-EP35-DS3L DPC Issue

    Methinks you need to clear your CMOS, load optimized defaults, reboot, apply any settings/oc then reboot. Otherwise your being to pickyyou gaming freak!
    I mean who watches their Dcp Latency..Really

  3. #3
    anonbeatz is offline Junior Member
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    Default Re: Ga-EP35-DS3L DPC Issue

    Teehee Well I watch the dpc because i use this pc for a DAW so any type of dpc can essentially cause audio drop outs when im working with multiple audio tracks. The lastest version of my bios is F6 because i have Rev 1.x for my mobo.

    Its strange really why moving my mouse would cause this lol im trying to keep it from fluctuating

  4. #4
    anonbeatz is offline Junior Member
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    Default Re: Ga-EP35-DS3L DPC Issue

    any help would be greatly appreciated thanks guys. oh and watching youtube videos spikes the hell out of my dpc :/

  5. #5
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: Ga-EP35-DS3L DPC Issue

    Running DPC latency checker v1.20 on my P35-DS3L rev 1.0 (not the EP35) my score averages about 275.
    If I close my sound card's software control panel, the average drops to about 85.
    There are no spikes with my usb mouse and ps/2 keyboard.
    Watching youtube or any web videos has no effect on DPC spikes.

    Try closing any unneeded background programs that aren't required when running DAW programs.
    Gigabyte's EasyTune program should not be running in the background because it frequently is a primary cause of DPC latency spikes.

    Your power supply is old and might be part of the problem.
    Borrow a newer high quality power supply to test with.

    The attached screen-shot was taken with my system at idle with many open browser tabs.

    Ga-EP35-DS3L DPC Issue-latencymon-v4-01-p35-ds3l-2012-06-19-png
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


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    Default Re: Ga-EP35-DS3L DPC Issue

    IDK migh try a PS/2 keyboard and mouse to see if the problem is still there. Other thoughts MB or bios problem...your wireless g adapter

  7. #7
    anonbeatz is offline Junior Member
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    Default Re: Ga-EP35-DS3L DPC Issue

    Profjim How do you have F9 Bios with a rev 1.0 mine shows at gigabytes website its only up to F6 for 1.X??

    I also have turned off any unwanted apps. I disable my onboard NIC and audio card. Turned off EIST,HPET ect..
    When im working on music i dont even have my Catalyst control center running or MOM.exe i turn it all off.

    USBPORT.sys always seems to be the one making the spikes happen.

  8. #8
    anonbeatz is offline Junior Member
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    Default Re: Ga-EP35-DS3L DPC Issue

    I see there is a beta bios of F7a is this somethins i should look into? also
    when i turn off hpet in my bios dpc checker my latency is reporting 1012s in latency monitor but in dpc checker its like 100...
    dunno why they show differnt values but when i turn hpet back on latency mon shows just over 100s until spikes occur

  9. #9
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    Default Re: Ga-EP35-DS3L DPC Issue

    are you running easytune? sometimes closing that helps reduce latency,disable c1e or c1 on older boards in the bios also eist can still be left enabled,has it always done this or since you added in the usb wireless dongle?

    post a screenshot of dpc



    try unplugging the front panel usb ports from your motherboard,i found those to be a big latency culprit,just to test and see if it reduces things
    Last edited by wazza300; 06-21-2012 at 07:52 AM.
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

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  10. #10
    anonbeatz is offline Junior Member
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    Default Re: Ga-EP35-DS3L DPC Issue

    Here is the pic of latencymon



    and wazza i dont have easy tuner installed and i have turned off all that in the bios. I disable my usb wireless g adaptor. Only thing that runs is my mouse and keyboard on usb.

    Ive turned of powersaving options in windows 7 as well.

    I start to get spikes of over 500 as time goes on

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