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    M1330 M1330 65W AC Adapter = Underclocked NVidia?

    Discussion in 'Dell XPS and Studio XPS' started by straddy, Aug 29, 2008.

  1. straddy

    straddy Notebook Enthusiast

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    Hi, I just installed a Penryn T8300 CPU, taking out the original T7250 on my M1330 (which came with a 65W adapter), but it seems the framerate for the NVidia 8400M has dropped. Is this because of the ac adapter? The BIOS did give me an AC adapter warning.
     
    straddy, Aug 29, 2008
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  2. rpt2000

    rpt2000 Newbie

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    Wild speculation but...

    When my PS failed I asked if they could send me a 90w one as my 65w got too hot. They had to speak to an engineer who got back to me the next day who said no, the laptop could draw too much power from a 90w and burn out.

    Therefore one could conclude that the GPU could perform better if it could get the power.
     
    rpt2000, Aug 29, 2008
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  3. own3d

    own3d Notebook Evangelist

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    I think penryn CPU's are meant to come with a 90Watt adaptor, I have a T9300 and when I tried with the slim 65 watt with that little blue Light it complained about power ...
     
    own3d, Aug 29, 2008
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  4. cantona156

    cantona156 Newbie

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    Mine's worse.
    It reboots immediately with 65W adapter (CPU running at max speed and recharging battery).

    It runs ok without battery charging.
     
    cantona156, Aug 30, 2008
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  5. jayno20

    jayno20 Notebook Consultant

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    i have replaced my T7500 cpu with a T9300 and i use the 65w adapter all the time with no issues at all... i also have the nvidia graphics chip.
     
    jayno20, Aug 30, 2008
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  6. straddy

    straddy Notebook Enthusiast

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    Ok, I got a 90W adapter with another M1330 I just bought (T7500). The M1330 with the T8300 still has low video performance, so it's not the power source.
    My Vista Experience Rating Gaming Graphics for the T7500 is 5.2.
    For the T8300 it is 4.7. I downgraded the BIOS of both to A09. Tried A11 and A12, no change in video performance.
    I used 3D Mark earlier but forgot the ratings, but I know that the T7500 did better with anything graphics-intensive.
     
    straddy, Aug 31, 2008
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  7. tabten5

    tabten5 Notebook Geek

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    straddy: what, then are the results if you switch the AC adaptors on the M1330s?
     
    tabten5, Aug 31, 2008
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  8. paper_wastage

    paper_wastage Beat this 7x7x7 Cube

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    what graphics driver?

    my m1330 (T8300, nVidia 8400) shipped with a 90W adapter with a green LED power light
     
    paper_wastage, Aug 31, 2008
    #8