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    System crawl in Win 7 on battery

    Discussion in 'Windows OS and Software' started by bluemongoose, Dec 11, 2009.

  1. bluemongoose

    bluemongoose Newbie

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    Hi all,

    I have an HP HDX 16 running a clean install of Win 7 Home Premium from the upgrade programme.

    Whenever I run on battery, after a few minutes the machine suddenly slows to a crawl and is extremely unresponsive.
    At first I thought it was a graphics driver issue, but it now seems the 'passive' system cooling policy is the problem.

    I know 'passive' reduces CPU speed, but when I am only running firefox, the system should not practically freeze - it never did on Vista.

    I wanted to use passive to save some battery, as this laptop isn't great in that respect. I'm typing this now with the 'active' policy which seems fine.

    Any ideas please? System is fully up-to-date.

    Thanks,
    abluemongoose
     
  2. pan123sel

    pan123sel Newbie

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    I too have this problem, but considering the amount of users using HDX, I do not see number of user reporting this issue.
    Is it something limited to only few?
     
  3. Joel

    Joel coffeecoffeecoffeecoffee

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    Check out your power settings. That can reduce performance when on battery.
     
  4. namaiki

    namaiki "basically rocks" Super Moderator

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    Passive just lets Speedstep bide it's time before it decides to raise the multiplier. There has to be constant high-ish CPU usage for that to happen. Much better than Windows Vista's implementation of reducing clock speed all the time.
     
  5. Kalim

    Kalim Ceiling Cat Is Watching U

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    Could this thread here be of any help?
     
  6. Eugene91

    Eugene91 Notebook Consultant

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    Check the Processor Power Management....... The min.proc state and max proc state for battery.. Set Minimum to 0% and Max to 100% ? see if that helps? or both min. and max @ 100%..
     
  7. sam fisher

    sam fisher Notebook Guru

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    Hey
    I have the got the same HP HDX 16t and after i upgraded it from vista to windows 7 i had the same problem .

    Runs perfect on AC power but if i remove the power the cpu shows 100% for no reason.

    I found a temporary fix that i posted here

    http : / / forums. cnet. c o m/5208-19411_102-0.html?messageID=3229131&tag=forums06;posts#3229131

    change the processor cooling policy to Active (if it is passive) in both balanced and in power saving mode and in both On battery and Plugged in options in windows 7.

    let me know if it works or if you found a permanent solution.,