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.

    P150HM Power AC noise

    Discussion in 'Sager and Clevo' started by h0w1er, Jan 28, 2012.

  1. h0w1er

    h0w1er Notebook Consultant

    Reputations:
    78
    Messages:
    178
    Likes Received:
    2
    Trophy Points:
    31
    Hi, everyone

    I've bought P150HM (from Nexoc), and have a problem with it.
    First of all Power AC - the size of this thing is extremelly big.
    When I've got M860TU I was shocked because of the Power AC size, but the Power AC size of P150HM is almost double.

    So, NB behaving well when not charged.
    When it's chariging also well.
    When battery is 100% and if Power AC still plugged (to play games, to keep highperfomance profile) it's creating loud noise.
    So if I open the page it will shut up for 1 mlsecond until window will be open, like this noise is somehow connected with operations.

    Anyone else notice?

    Any possiblity to have Power AC from outside, smaller/better?
     
  2. MrDJ

    MrDJ Notebook Nobel Laureate

    Reputations:
    2,594
    Messages:
    10,832
    Likes Received:
    363
    Trophy Points:
    501
    try removing the battery when its charged and just run using mains. do you still get the noise?
     
  3. h0w1er

    h0w1er Notebook Consultant

    Reputations:
    78
    Messages:
    178
    Likes Received:
    2
    Trophy Points:
    31
    Did it.

    Noise not stopped.
    Plugged battery back, it's became silent , was considering ~20 sec that battery is charging. 20 sec later it's saw 100% charge and continue to whistle again.
     
  4. Anthony@MALIBAL

    Anthony@MALIBAL Company Representative

    Reputations:
    616
    Messages:
    2,771
    Likes Received:
    3
    Trophy Points:
    56
    There's nothing that can be done about the size of the power brick- it's just a requirement of the high wattage of the laptops. To get that sort of output, you can only shrink the components so far. The smaller/lighter third party adapters have a bad track record in terms of performance and reliability as well (some have just died under load, some have fried the motherboard or other components).

    As for the noise, if it's coming from the power brick itself, I'd contact your retailer for a replacement and stop using it ASAP. If it's coming from the battery, try running the machine without a battery but on AC. If you don't get any noise that way, try getting a replacement battery instead.
     
  5. HeavenCry

    HeavenCry Notebook Virtuoso

    Reputations:
    1,044
    Messages:
    2,365
    Likes Received:
    18
    Trophy Points:
    56
    I had that with the D900F power brick. It was annoying but i had no ill effects from it. MYSN claimed it was normal back then saying most such high wattage power bricks did it so i didnt push for a replacement knowing if anything happened theyd have to cover it. I also worked on a few laptops which had power bricks that made noise when you scrolled a website or similar actions, it was damn creepy listening to that. Notebookcheck.de also reported the same power brick noise with their P150HM review unit but since mine is dead silent its probably defective units. Ask for a replacement.
    The size cant be helped as Malibal said above.