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Thread: Inconsistent performance from Gigabyte 760GTX OC

  1. #1
    Join Date
    Jun 2014

    Default Inconsistent performance from Gigabyte 760GTX OC

    The 760 worked for 8 months until it started acting weird. Every time I restart, the card feels like its throttled differently. Using Diablo 3 framerates as measurement, sometimes I will get capped at 30fps, sometimes 60fps sometimes back to normal at 140fps in town.

    The drop in performance is also visible on the desktop. Explorer Windows and Browsers will render slower and frame drops when moving around the desktop

    The weirdest part is that I do not get any BSOD or game crashes, it simply just feels like the computer is being throttled differently everytime I restart the computer.

    CPU Z and GPU Z all reads the computer and GPU to be running at normal factory frequency. So I can't even tell where the throttle is happening.

    Things I have tried:
    - re-install video drivers
    - re-install Windows
    - Reflash Bios
    - RMA'd GPU (gigabyte sent back the SAME CARD and said no errors found)
    - Set back to Stock speed, Overclocked and Underclocked CPU/GPU
    - Set Windows power setting to High performance
    - Set Nvidia drivers to high performance preferred
    - disabled Speed Step/ Intel turbo boost
    - blow out dust and re-seated the GPU
    - Re-seated the rams
    - Unpacked all cores

    I am seriously out of ideas at this point. I looked around and it seems that there is alot of GIGABYTE 770s exhibiting this problem too. I'm pretty convinced this is a gigabyte issue.
    The temporary fix right now is to seriously just keep rebooting the computer until I get back to normal performance.

    My rig:
    i7 4770K
    Gigabyte z87x-d3h
    Crucial 16gb @ 1600mhz
    Corsair 750 PSU
    Gigabyte Winforce 760 GTX OC 2gb
    SSD+ 2 HDD
    Dual monitors 27" and 23" vertical
    Last edited by KevinMHC; 06-25-2014 at 03:12 AM.

  2. #2
    profJim's Avatar
    profJim is offline Chief Munchkin + moderator
    Join Date
    Dec 2008
    Tacoma, WA. [USA]

    Default Re: Inconsistent performance from Gigabyte 760GTX OC

    Welcome to the forum.

    1. Did you make any hardware or software changes changes to your system shortly before the erratic video performance started?
    2. What is the model name of your Corsair power supply? How old is your power supply.
    3. Have you tried running with your video card in the PCIEX8 slot to see if the problems are the same?
    4. Did you test with the OC Guru utility removed from your system?
    5. Did you test with MSI Afterburner installed and running on your system?
    6. Did you try running with only one monitor connected to your system?
    7. What are the screen resolutions for each of your monitors?
    8. What type of video cables are used for both monitors.
    9. Can you test your video card in another system?
    10. Which operating system are you running?
    11. Have you run the windows Resource Monitor to make sure that cpu utilization is reasonable?

    You should also run HWiNFO64 and enable logging so that you can review voltages and temperatures in your system to see if there is anything wrong.

    MSI AfterBurner has excellent session logging where you can later look at all the logged results graphs.

    MSI Afterburner Download
    AfterBurner User Manual Download (pdf)

    Inconsistent performance from Gigabyte 760GTX OC-msi-afterburner-saved-logging-session-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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