1.    10 Jan 2016 #1
    Join Date : Jan 2016
    Posts : 1
    Windows 10

    Terrible DPC Latency

    Hey guys,
    I am using an Acer VN7 791G gaming notebook with:

    - Core i5 4210M
    - GTX 860M
    - 8 gigs of ddr3
    - no ssd
    - win10 64

    My problems:

    - Mild slowness in general.
    - Constant delay of audio when playing videos, both streams and downloaded videos, movies etc.
    - Visual lag spikes ranging from a few miliseconds long to seconds long during said videos, making the movie feel sluggish.
    - Games either having very low, unplayable FPS or having, i don't quite know how to describe it really, I guess having some sort of visual lag with "forced" feel to it, not really drops in fps. Call it constant visual delay.
    - No exceptions. I can't play any game.


    - I have been having this problem for around a year.
    - It initially disappeared for around 2-3 months after I disabled Intel(R) Technology Access from the app menu. It randomly started again around 7 months ago.

    Possible culprit:

    - Both dpc latency checker and latencymon report extremely high levels of dpc latency.
    - The problem somewhat eases when I disable the wireless adapter, though does not disappear completely, further suggesting that it is related to dpc latency caused by ndis.sys as reported by latencymon.

    What I have tried:

    - Possibly everything you can imagine.
    - Every. Possible. Thing. found in the internet related to dpc latency issues. From suggestions related to the usage of command prompt, to completely deleting my wireless adapter and reinstalling it with newer drivers or older drivers, doing pretty much the same bloody thing to every component of my pc.
    - Upgraded to Windows 10 and tried everything I had already tried, again.
    - Nothing worked. Nothing ever works.

    I am in a month-long holiday now and would like to use my computer for some gaming and relaxation. Except I can't do that. I have exhausted all my options, and am terrorized by this issue after having to deal with it for a whole year. I know this post probably won't help, but I want to be able to say that I have tried everything, including here.

    Thank you for reading, I am open to any and all suggestions.
      My System SpecsSystem Spec

  2.    10 Jan 2016 #2
    Join Date : Oct 2013
    Posts : 2,014
    Windows 7

    DPC latency problems are usually caused by bum drivers. The DPC latency checker should give you a hint where to look (if you have a lot of red bars).
      My System SpecsSystem Spec


Similar Threads
Thread Forum
Terrible battery meter?
Has anyone else noticed that the estimed time left on the battery in windows 10 fluctuates wildly? On my xps 13 it can change almost 3 hours between checking it 5 minutes apart. Thanks!
Performance & Maintenance
Firefox has terrible font rendering
Hi. I'm using Firefox 43 (just upgraded from 42) and the fonts are terrible. Already disabled hardware acceleration, Direct2D (as suggested here)and nothing helps. 53939
Browsers and Email
Is there any alternative to the terrible sign-in screen?
Is there an alternative to the indescribably bad windows 10 sign-in screen? Windows XP was perfect - use the arrow keys to move up or down to the chosen user and the password box was immediately ready for you to type your password. Quick, simple...
User Accounts and Family Safety
I will say this for Windows networking. It is terrible!
I can't figure this stuff out. I have 3 home windows 10 computers, all of which have solid internet connections, all of which are in the same workgroup. What kills me is how intermittent my ability to connect to other machines on my network can...
Network and Sharing
terrible slow boot
I gave Windows 10 another chance after March update and tried a VM so I upgraded main Windows 8.1 to 10 build 10041 Bios-> windows logo for some seconds->black screen for 10 minutes->desktop While on the black screen, the HD light is...
General Support
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 04:04.
Find Us
Twitter Facebook Google+

Windows 10 Forums