The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    Windows 7 - Sound spikes | DPC Latency

    Discussion in 'Alienware' started by nguyenhoangvk, May 13, 2009.

  1. nguyenhoangvk

    nguyenhoangvk Notebook Guru

    Reputations:
    0
    Messages:
    64
    Likes Received:
    0
    Trophy Points:
    15
    Hi,
    I'm having a sound problem on my m15x running Windows 7. The sound spikes about 15-30 seconds a time. I have also noticed that whenever I use Fn+F8 to Eject the DVD Drive the spikes will appear.

    Any one here has the same issue and got fixed ?

    See the result after I pressed Fn+F8 several times.

    [​IMG]
     
    nguyenhoangvk, May 13, 2009
    #1
  2. dwend

    dwend Notebook Evangelist

    Reputations:
    84
    Messages:
    313
    Likes Received:
    0
    Trophy Points:
    30
    it is know when you eject the disk it will cause a huge latency spike, it will happen no matter what OS you are using.

    Other than that your latency looks good.
     
    dwend, May 13, 2009
    #2
  3. Luke1708

    Luke1708 Notebook Virtuoso NBR Reviewer

    Reputations:
    352
    Messages:
    3,799
    Likes Received:
    0
    Trophy Points:
    105
    It does not happen on my system, when i eject my dvd.
     
    Luke1708, May 13, 2009
    #3
  4. dwend

    dwend Notebook Evangelist

    Reputations:
    84
    Messages:
    313
    Likes Received:
    0
    Trophy Points:
    30
    The OSD utility makes a huge lat spike when you hit that fn+f8, if you right click on the drive in my computer and eject it that way you will not get the lat spike.

    Also try a Vista x64 video driver, I seem to get better results with them over the Windows 7 ones. Don't get a 185 driver they do not work with the m15x for some reason. Hit up labtopvideo2go.

    any thing less than 1000us is good.
     
    dwend, May 13, 2009
    #4
  5. nguyenhoangvk

    nguyenhoangvk Notebook Guru

    Reputations:
    0
    Messages:
    64
    Likes Received:
    0
    Trophy Points:
    15
    Thanks you guys. Good to know the hot key Fn+F8 causes that problem. But I still got a sound spike about 30 seconds a time :(
     
    nguyenhoangvk, May 13, 2009
    #5
  6. dwend

    dwend Notebook Evangelist

    Reputations:
    84
    Messages:
    313
    Likes Received:
    0
    Trophy Points:
    30
    Try updating your chipset and other intel drivers (networking) or disable devices until the latency stops. Also what Bios are you using, I recommend the x32 and x36, the x34 is know to have latency issues.
     
    dwend, May 14, 2009
    #6