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Laptop runs slow, when i plug it in & it charges

Discussion in 'Windows XP' started by coopsxx, Sep 5, 2006.

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  1. coopsxx

    coopsxx Thread Starter

    Joined:
    Sep 5, 2006
    Messages:
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    Hi if anyone can help i would be so greatful!!

    I have a laptop which slows down as soon as i plug it into the mains. When running on batteries it is as fast as it should be and is perfect. I could comprehend the problem if it was the otherway around but this is too wierd.

    I have rebooted the wholes system, it is clean as a whistle, over 30G of space, Virus checker / Firewall / ADaware remover / Registry cleaner / Defraged / Disk Cleanup - everything is in working order to keep this machine clean and healthy and it is.

    The problem is most apparent when watching movies or clips, as the image goes out of sinc with the sound, freezes or goes super-slow, yet as soon as i remove the plug, and it's running on batteries it's fine again.

    I know someone out there must have a solution.

    thanks
     
  2. Rollin' Rog

    Rollin' Rog

    Joined:
    Dec 9, 2000
    Messages:
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    Doesn't quite make sense as far as the battery vs. plug -- but otherwise the symptoms may fit an IDE controller in PIO mode.

    > If you open the Device Manager (run devmgmt.msc) and select the entry for IDE ATA/Atapi and select the Primary IDE > Advanced Settings, does it say the "current transfer mode" is DMA or PIO?

    If it says PIO, first ensure "Use DMA if Available” is selected, then select the driver tab and uninstall the driver and reboot. Then check again.
     
  3. coopsxx

    coopsxx Thread Starter

    Joined:
    Sep 5, 2006
    Messages:
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    Thanks for the reply, there are 2 devices
    Device 0 says - 'Transfer Mode: DMA if Availabe (in teh drop down box, below where it says ) Current Transfer Mode: Ultra DMA Mode 5'
    Device 1 says - 'Transfer Mode: DMA if Availabe (in teh drop down box, below where it says ) Current Transfer Mode: Not Applicable'

    There are other IDA channels

    (2 be honest though i am only describing what is here i am a COMPLETE NOVICE)
     
  4. Rollin' Rog

    Rollin' Rog

    Joined:
    Dec 9, 2000
    Messages:
    45,855
    The problem is not there then.

    You may have a problem with the power adapter itself not supplying full voltage under load.

    I don't know how you can really test this without getting another though.

    Is the laptop under warranty?

    The only other thing I can think of, and it's rather unlikely, is that the power settings may be overheating the CPU when running from the adapter, but this would not happen instantaneously, it would be a gradual slow down.
     
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