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Xonar DG DPC Latency issues

post #1 of 9
Thread Starter 
So I've been struggling with this DPC Latency problem for quite sometime. often I'll find my sound starts to stutter, making the entire computer laggy, resulting in games being completely unplayable. Using the DPC Latency checker, my latency gets into the hundreds of thousands. I've done some diagnostic stuff using windows performance toolkit to narrow down the problem, and I've been able to find out that it's the xonar DG sound card. I've even swapped the card with another one because I thought perhaps the card itself was defective, but I still find myself having these issues... I never had any issues when I was using my onboard sound card (I'm using the DG because of the headphone amp for my K240 Studio headphones).

I've tried everything, reinstalling drivers (multiple times), I'm currently using the Uni xonar Drivers, as I heard those minimize latency issues, but I still find this problem popping up. I figured I'd post here and perhaps someone knowledgeable in this area would be able to offer some advice

Some other info: Computer is over clocked, with power saving options enabled (intel speedstep, etc), HPET is disabled (heard this would reduce latency)
post #2 of 9
Thread Starter 
Bump, really need some insight into some solutions I could look into frown.gif
post #3 of 9
Oh crap, sorry for the late response.

Try downloading and installing the unified 3rd party drivers. Or simply try using driver sweeper to delete the current driver and reinstalling it. thumb.gif
Yin&Yang
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Yin&Yang
(19 items)
 
Soon
(15 items)
 
 
CPUMotherboardGraphicsRAM
i7 4820K Gigabyte X79 UP4 GTX 660 (waiting for new AMD cards) Samsung green  
Hard DriveHard DriveCoolingOS
Adata SP900  Seagate 2TB hard drive (the power of 1 edition)  Custom WC Loop Linux (various versions) 
MonitorKeyboardPowerCase
Samsung SyncMaster T240HD Coolermaster XT Green switches XFX 1000w Corsair 800D 
MouseMouse PadAudioAudio
Razer Naga Epic 2014 edition Razer Vespula Stax Lambda Nova Classic Custom DIY DAC 
AudioAudioOther
300b PP monoblocks Snell J3 NZXT Hue 
CPUCPUMotherboardGraphics
8 core xeon E6 @ 3.5ghz 8 core xeon E6 @ 3.5ghz EVGA X99 SR?  AMD 390x 
GraphicsRAMHard DriveCooling
AMD 390x 128 GB ECC DDR4  1TB PCI-e SSD Custom WC Loop 
OSMonitorKeyboardPower
Linux 16:10 Samsung PLS 4K monitor Corsair RGB keyboard with custom cherry MX supe... EVGA 1600 watt titanium  
CaseMouseAudio
Caselabs Magnum STH10 DIY my own mouse Snell J 3 
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post #4 of 9
Are you using the microphone monitoring function of the DG card? This can definitely cause a bit of lag. Also, before you record with the card, open up Task Manager and check which programs are currently running. Background processes can cause latency as well, such as anti-virus and malware programs, drive backup software, and anything else that would constantly monitor what is happening with your operating system.
post #5 of 9
Thread Starter 
I have been using the Uni Xonar Drivers, reinstalled, cleaned up drivers with driver sweeper, still been having the same problem. it became too much, i've just uninstalled the card and have been using my integrated. I would like to be able to use this card, but the random latency spikesit causes makse it impossible to play any games frown.gif
post #6 of 9
Normally I would advise to specifically use UniXonar drivers with low DPC latency setup (which you probably have, even though you don't say which setup you ran) and avoid ASUS control panel and use XonarSwitch instead, but having latency spikes in the hundreds of thousands makes me think your problem is either hardware or driver related.

When I say hardware I don't necessarily mean something is defective, since you swapped cards and the problem stayed. It could be some bad interaction between a BIOS setting and your Xonar Card.

If you feel like installing your card again and doing some more test, I'd start saving your overclocking profile and then putting everything to stock and playing with various settings and even underclocking components, to see if the problem goes away.

Also, a tool that is useful and handy to diagnose DPC latency problems is Resplendence's free LatencyMon.
post #7 of 9
Im so happy people are suggesting latencymon over dpc checker after we started spamming that biggrin.gif
post #8 of 9
Thread Starter 
Yeah I think i'll try this. I started getting latency issues again so I think you're correct when you say it could be something hardware related.

One thing I should mention is that I do have my 2600K overclocked to 4.5GHZ using offset voltage. I also have intel powersaving features such as the C1e, c3, etc states, and also have intel speedstep enabled. Is it possible that any of these things could be causing the latency issue?

Edit: I downloaded Latencymon, and I'm going to run it and try to see what I find without the card installed. I'll probably try to install the card this weekend and test

Edit 2: Used latency mon and found out it's the usb, anyone have any idea howt o fix this?
Edited by Wind - 12/4/13 at 9:26pm
post #9 of 9
Try all the usb ports, and hope you get lucky.. if not,try setting everything stock, check again, still not fixed?, reinstall windows, (this works much more often than people think it does biggrin.gif)
If its still there after that its pretty safe to assume hardware failure
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