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Hardware Thread, Dell D531 laptop problem in Technical; Hello, we have about 150 Dell D531 laptops in our college. Trolleys for students and also staff have them to. ...
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    Dell D531 laptop problem

    Hello, we have about 150 Dell D531 laptops in our college. Trolleys for students and also staff have them to. Recently some of them would be really slow on boot up and in windows. I tracked it down to the Primary IDE reverting to PIO mode, i uninstall it, restart the laptop and UDMA is now enabled.

    My question is does anyone know why this is happening, its not all of the laptops, just 1s and 2s here and there.

    Cheers

    Michael

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    AngryTechnician's Avatar
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    I think I might know this one. Are they running XP or earlier (i.e. not Vista)?

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    DO they have the latest BIOS?

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    Morning, they are running XP with SP3 and not, its no the latest BIOS, we have A04 and the latest is A08.
    Last edited by difinity; 6th May 2009 at 08:43 AM.

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    This is almost certainly what is causing it. Windows monitors IDE devices for errors, and if it encounters enough of them over a certain period, will bump the drive down to PIO, with no notification.

    The monitoring was made less aggressive in XP SP2, but you have to enable the change via a registry setting, as described in the article.

    I still see the symptoms from time to time even with SP3, though primarily on DVD drives, as the disk skipping during playback while the laptop is being moved counts as an error. The user's complaint is normally DVD playback has suddenly started to be very choppy.
    Last edited by AngryTechnician; 6th May 2009 at 08:47 AM. Reason: Note that registry changes are required even with SP2

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    difinity (6th May 2009)

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    It's been mostly student laptops that have been causing the problem, and they have an extra battery rather than a DVD drive, however at the top of that article they mention supend and resume problems, so i think that's it....cheers.

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    I would update the BIOS and see what happens its only a quick .exe file that needs to be run.

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