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    Very Active Fan On Pavilion Notebook.

    Discussion in 'HP' started by Avian Maid, Mar 14, 2008.

  1. Avian Maid

    Avian Maid Notebook Enthusiast

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    My almost new Dv2617us pavilion notebook(Centrino Duo 1.5 ghz, 2 GB ram) computer is sitting idle and the temperatures for the cores are 47C and 43C according to HWMonitor. The fan seems to never stop. The noise is tolerable, but very annoying when I'm studying or reading. Is there a problem with my computer?

    -Also hot air is coming out of the fan
    -Running on latest BIOS
    -My computer is still under HP's "one year warranty", will I have to pay for the repair if i send it in?
     
  2. ScifiMike12

    ScifiMike12 Drinking the good stuff

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    What's your GPU temperature? Mine use to do that when it would go above 55C or something like that.

    Also, try using Core Temp to compare with HW monitor. Just to be safe that we're reading/getting the same temps.
     
  3. private

    private Notebook Guru

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    I have the same problem with my new DV2500 (1100 €, T7300, X3100, bios F.25).
    Using RMClock 2.35 the cpu fsb set at power saving (8x-600mhz @0.950v, no throttleing) The fan switch on at 43.0°C and stops at 35.0°C, that means always spinning.
    HP knows the problem and the complains of customers, but They don't take care.
    I'm seriously thinking to sell it and buy a new Toshiba.
    I'm seriously disrupt by this problem. I use the lappy to study and reading in library or in my room wihout any noises and I'm getting frequently headache caused by the fan always spinning.

    Why HP doesn't set the fun in a higher range like 42-50°C instead of 35-43°C. An higher temperature (7-8°C more) is not a problem for the cpu Merom (tjunction 100°C).
    Also battery life will benefit from a reduction of fan use.
     
  4. booyoo

    booyoo Notebook Consultant

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    You guys should read some threads about the AMD based heating issues for which HP decided to provide a bios which leaves the fan on all the time...Maybe this preventive approach is starting to appear on their intel based laptops.. http://forum.notebookreview.com/showthread.php?t=227229
     
  5. Avian Maid

    Avian Maid Notebook Enthusiast

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    It's REALLY annoying because even my cheap acer laptop more quiet than my new pavilion.
     
  6. private

    private Notebook Guru

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    The fan is not on all the time.
    The problem is that start spinning at a low temp (43°C), that means after 2-3 minutes, although the cpu is far to be in overheat danger (70-80°C).

    There are not hardware problem such as the AMD based, but only a useless
    tuning of the fan/thermal sensor.
     
  7. booyoo

    booyoo Notebook Consultant

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    Its all a mix of lifecycle management, user experience and comfort.
    On laptops, the fan is designed to extract heat from the chassis as a whole. The heat of any single component can damage something around it. There are a few major components that require thermal protection to work at all given their fast clocks and processing power, which are the CPU and GPU. There is also a mechanical friction generated heat which comes from the hard drive that given the minute design tolerance, needs protection to prevent material deformation. The other electronics which generate heat like memory, some chips and power related circuits require the thermal protection in order to prevent accelerated wear.
    It would be very expensive, bulky and simply not practical for a laptop to deliver nowadays performance levels by idle air circulation alone therefore the role of the fan is to assist that circulation.
    If you use consumer grade electronics at higher temperatures their lifespan is shorter and that brings up a decision of preventive measures to keep that failure period within a reasonable expected lifetime of the machine.

    Bottom line - the cooler the hardware runs, the longer it will live.
     
  8. quasiinsomniac

    quasiinsomniac Notebook Guru

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    Tried updating the BIOS. I noticed that when I downgraded the BIOS on the 2700, the fan ran more than it did on the newer BIOS.
     
  9. private

    private Notebook Guru

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    F.25 is the latest bios. No benefits.
     
  10. brianstretch

    brianstretch Notebook Virtuoso

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    No, it's the same hardware problem, just less severe. Starting the fan at 43C is a Good Thing. Wait too long to spin up the fan and the rest of the notebook cooks, particularly the Broadcom WiFi cards that the AMD notebooks use but other components are not immune. AMD notebooks weren't spinning up the fan until the CPU hit 55C.
     
  11. private

    private Notebook Guru

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    Of course, always spinning would be better than starting at 43C :mad:
    Whereas Intel based dv2xxx haven't Broadcom, but Intel wifi card, starting at 43C it's cooking my head!!!!
    The fan switch off at Tcore 35C, that's mean never if u r inside home :mad:

    That's not a problem of wisdom, always spinning will save life for cpu, but will damage fan, battery life and above all the health of customers :mad:

    The fan of dv2xxx is very fastidious. I owned a lot of laptops, and I use every day my friend's laptop with the same cpu of mine (T7300) and they don't have this problem.


    The problem is HP that doesn't take care their customers.