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    Does the M15x Suffer from DPC Latency Issues....

    Discussion in 'Alienware' started by KC0r8y, Nov 14, 2009.

  1. KC0r8y

    KC0r8y Notebook Consultant

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    Like the M17x does?

    Can anyone please post a pic of the DPC Latency tool on a newer m15x please?
     
    KC0r8y, Nov 14, 2009
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  2. KC0r8y

    KC0r8y Notebook Consultant

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    Can anyone help please?
     
    KC0r8y, Nov 15, 2009
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  3. Wests

    Wests Notebook Guru

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    I'd like to know this as well.
     
    Wests, Nov 15, 2009
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  4. ShaZadam

    ShaZadam Notebook Consultant

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    I wish i knew what u were talking about so i could try to help lol :(
     
    ShaZadam, Nov 16, 2009
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  5. catacylsm

    catacylsm Notebook Prophet

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    Theres a test in the m17x latency issue forum that if you run it can tell you about your dpc latency etc or not, the m17x suffers from abnormal spikes strangely.
     
    catacylsm, Nov 16, 2009
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  6. KC0r8y

    KC0r8y Notebook Consultant

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    KC0r8y, Nov 16, 2009
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  7. Aedaric

    Aedaric Notebook Geek

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    +rep to everyone who helps out! Thanks for the linky Cataclism, I was going to do it if no one had by the time I reached the bottom of the post.
     
    Aedaric, Nov 16, 2009
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  8. lgsshedden

    lgsshedden Notebook Consultant

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    downloaded as per instructions, ran the test and attached is the snipped image: since I am having problems with my wifi card connecting after sleep I would suspect it of being the one driver than causing concern: I'm also running the nVidia beta 195 driver and not the stock Dell one so that could also be it. Otherwise I would say there is no dpc latency issues by comparison with the M17 thread but will defer interpretation to those who asked for the information in the first place.

    well that was easily diagnosed! disabled the IDT high definition audio Codec and the one red bar has disappeared. So I guess I will uninstall it and use the default win7 driver instead.
    Simple fix: rolled back the driver to the default win7 driver instead of the Dell one and system functions fine and yellow bars across the board.
     

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    lgsshedden, Nov 16, 2009
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  9. Aedaric

    Aedaric Notebook Geek

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    While that is better in some respects then the M17x, I would like to point out that it is no way comparable to a regular desktop or my wife's M15, the model before the M15x, she has the 8600GTX as her video card, her max DPC was 582. I've added screenshots of the two. Also, in regards to my 9400, I'm getting spikes, just not 16-60k at all, the highest being 6400.



    Left is the desktop. Right is the m15.
    Aedaric
     

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    Aedaric, Nov 16, 2009
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  10. KC0r8y

    KC0r8y Notebook Consultant

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    I'd be curious to see how bad it is under Windows Vista. My DPC Latency issue isn't half as bad under Vista as it is under win 7.
     
    KC0r8y, Nov 17, 2009
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  11. lgsshedden

    lgsshedden Notebook Consultant

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    still waiting for that + rep!
     

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    lgsshedden, Nov 19, 2009
    #11