GPU Boost 2.0 I didn’t have a chance to do a ton of testing with Nvidia’s second-generation GPU Boost technology in my GeForce GTX Titan story, but the same capabilities carry over to GeForce.
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Duplicate news content will be removed. FollowRelated Subreddits. Hello guys!First off, my specs:i7 3770 (non K)GTX 970 GIGABYTE G1 Gaming8 GB Corsair Vengeance 1600 MhzI'll try to be short. Somedays ago my PC started stuttering like hell every few moments, when I try opening a video up or starting Visual Studio or Unity. It's more noticeable when I'm listening to something because the audio lags, but the entire PC freezes for a second (mouse stops).After a lot of experimentations, I decided to change my GPU and test with my old one (a GTX 660 Ti) and lo and behold, the stuttering was gone. After that, I tried cleaning and changing the thermal paste on the 970, but it was still the same, so I started watching GPU-Z:Every single time a stutter happens my GPU clock has been changed.
It happens when it goes up or down, it doesn't care. My GPU stays most of the time running on the minimum core clock, but everytime I try to open something it stutters and changes the clock.Deal is, the graphics card works just fine. If I'm gaming, where there is a constant need for the clock to be high (no changes), no stutter happens. It just works. As someone that works from home programming while listening to music, this is driving me insane. Every time I do something that requests a clock change my mouse stops and the song stutters.I tested Heaven on the Extreme preset, it resulted on: FPS:69.6Score:1754Min FPS:15.3Max FPS:158.6, which is great. The graphics card is doing fine, besides the clock thing.Thanks for reading, I just don't know what to do anymore.
![Boost 3.0 nvidia Boost 3.0 nvidia](/uploads/1/2/4/2/124204654/747069138.jpg)
![Como Como](/uploads/1/2/4/2/124204654/360704344.jpg)
Thanks for any help provided ^ ^p.s.: I changed the Nvidia Control Panel Global Setting of Power management mode to 'Prefer maximum performance'. It seemed to have worked for a day or two, but now I'm back to the stutters. I already extracted the EEPROM from my card and am wondering how I could flash it to make it run at max clock all the time, but won't make anything without more knowledge.EDIT1: I'm a dumbass that confused GPU Boost with that technology that was introduced on the 6's series, the dynamic clock. The problem is not my GPU going to a high clock, it's it's changing clocks.By using LatencyMon I pinpointed the exact moment the PC stutters, which is:Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.Highest ISR routine execution time (µs): 218Driver with highest ISR routine execution time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation.my Audio Driver. The exact reason it happens exactly when my GPU is changing clock and only with my GTX 970 is not clear, but I'll be looking into that. Will try to change my drivers to a newer or older version.EDIT2: I uninstalled my audio driver. Stutter still happens when my GPU clock changes, but now the reason is linked to the DX kernelHighest ISR routine execution time (µs): 148Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft CorporationGo figure, trying to understand wtf is going on.
It's more noticeable when I'm listening to something because the audio lags, but the entire PC freezes for a second (mouse stops)I'm guessing you have a Realtek onboard audio chip. This is a common thing that happens with onboard audio, especially Realtek, and usually a driver update fixes it. Find the latest drivers for your audio and try that out.Windows 7+ has a weird audio pipeline, and the audio card can interrupt every other part of your computer (compositing, display, etc) based on Windows' funky notion of audio priority. A sure shot way to guarantee it isn't from GPU boost would be to ensure the card is running at maximum boost clock with a custom fan profile to prevent the card from throttling, and have it run like this while you browse the web. If you can do this and confirm all stuttering is gone, then you've correctly identified the cause of the problem. Things get iffy from here because quite frankly I wouldn't know what your next best course of action would be. Contact your GPU manufacturer and ask for an RMA?
What if it wasn't the cards fault and the new one exhibits the same flaws? Contact Nvidia and complain? They don't even acknowledge driver bugs half the time and these things go on unfixed for years. I really don't have a solid solution to this problem should it turn out GPU Boost really is the issue.As far as how to get the GPU to sit at max boost, just run a game in windowed mode with high graphics settings in the background while you go about your normal business. Make sure the fan is at max speed to guarantee the card does not reach thermal targets and throttle. Good luck. LatencyMonI installed that and sure enough, what is taking a ton of a heck of time is my HD audio driver.Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.Highest ISR routine execution time (µs): 218Driver with highest ISR routine execution time: HDAudBus.sys High Definition Audio Bus Driver, Microsoft CorporationNow why the heck the audio driver stutters the whole PC exactly at the same time my GPU is switching clocks is a whole other thing.
I'll try messing around with my drivers and finding what the hell is going on, thanks for the app idea.