Fan noise - suggestions?

Discussion in 'VAIO / Sony' started by hara, Mar 25, 2008.

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  1. hara

    hara Newbie

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    Hi there,

    I have some trouble with my Vaio SZ370p...since a couple of weeks my fan makes weird noises and the computer is running hot.

    As far as I understood, there are basically 3 different speeds the fan works on. After starting the notebook it runs silent, when the first programs the fan starts running louder and faster and in a third step, during gaming for example, it goes full power. Now my trouble starts in the 2nd speed, where the fan makes noises like a playing card in the spokes of a bicycle. Additionaly - in the third phase during gaming - the sounds disappears (maybe because of the speed of the fan) but the computer runs hot:
    Notebook Hardware Control tells me the CPU temperature rises above 80 degrees Celsius in about 2 minutes. Thermal zones heat up to 90 degrees. As a result the HD start heating up. The fan seems to keep the temperature at those settings, but the computer gets extremely hot on the bottom - regardless of the base - and palmrests are ready for eggs sunny side up.
    Once the game is closed the CPU cools down to about 60 and then slowly drops.

    So, I guess, because of the noise in "phase 2", that my fan has some issues and needs replacement. Anyone ever did that or can point out some helpful links?

    Any other suggestions what may cause the heat and noise?

    Thank you!
     
  2. redrazor11

    redrazor11 Formerly waterwizard11

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    Try to update drivers. It could help with fan management. Also make sure you have the latests bios.

    If you want to reduce processor heat, and overall heat, try Undervolting your CPU. Search it in the forums. It'll bring your cpu to alot lower than 60 :p
     
  3. SPEEDwithJJ

    SPEEDwithJJ NBR Super Idiot

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    Maybe you may want to open up your laptop to clean the fans or something along those lines...
     
  4. redrazor11

    redrazor11 Formerly waterwizard11

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    Yea, that too, Dust will wreak havoc on any moving parts in your computer.
     
  5. hara

    hara Newbie

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    Thank you so far, but sorry, cleaning does not solve the issue. As I implied above I guess it is a mechanical problem with the fan, maybe the bearing is broken, as the noise (which is no typical fan noise) appears only at certain speeds...

    Anyone ever changed a fan on SZ or knows a website with helpful pictures or information?
     
  6. hara

    hara Newbie

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    No one?





    Ever?




    No? ;(
     
  7. slickvaio

    slickvaio Newbie

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    Hi hara,

    Edit: if your problem goes beyond dust bunnies in the heatsink, you might consider getting a new fan, I'm considering doing this since mine rattles annoyingly as well. The link below will show you how to take apart the laptop.

    I had a similar problem:
    - Computer was getting WAY too hot, even the carbon fiber was too hot to put my hands on.
    - Computer would shut down from overheating (which is very bad for your hardware) at one point.

    I downloaded SpeedFan and found that some of the temps were hovering around 90 C. Not too good. The heatsink itself was hot, but wasn't cooling the laptop enough.

    What I did
    -------------
    Check out this link to find out how to take apart the laptop.
    http://laptoplogic.com/resources/detail.php?id=43&PHPSESSID=3420b1fb6046727dcf632c4dd238739e

    First, I took the laptop apart and blew compressed air through the vents, cleaned the keyboard, fan etc. There seemed to be dust on the fan that wouldn't come off by air though. Then I put the laptop back together. It didn't solve my problem.

    Warning: if you blow compressed air near the fan, make sure you use a toothpick or screwdriver to stop the fan from moving. Apparently this can cause the fan to rattle later (which happened to me).

    A few days later I tried again, but this time I took out the heatsink (has a couple of screws on the CPU in the center to remove it). It comes out very nicely. Make sure you don't touch the contact between the cpu and heatsink or let anything else touch it when the heatsink is on the table.

    When I took out the heatsink, there were a few dust bunnies that were clearly preventing the air from flowing into the heatsink wings and out of the lappy. Once I put the laptop back together, no heat problems.



    Other notes
    ----------------
    My lappy is usually on a flat surface with maybe 1 mm of softness.
    If you don't want to take your lappy apart right away, if you change the processor max speed to 50% in Power Options, this will cut the heat dramatically.
    My lappy is a VGN-SZ460N. (Sony Vaio)
    You don't need to take out the front panel (keyboard/carbonfiber) to clean the heatsink, but you might need to do this to replace the fan, not sure.

    Let me know how it goes!


    P.S. If anyone has a simple solution for fixing a minor fan rattle, please let me know!
     
  8. hara

    hara Newbie

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    Thank you so far, slick. Solving the heat issue does not seem to be a problem and I will take care of it today. I already found some dust bunnies inside the grill and will go on cleaning the complete interior...

    The fan sound though still prevails and annoys me. I made this recording of it just a second ago so you can listen that this is not the typical fan-issue:
    http://www.cotton.in-berlin.de/fan.wav
    The fan makes those noises only when programs are used. Once I play games, it runs normal at high speed, but the computer gets hot. I will try to access the fan soon, but first I need to find out where to get a replacement...
     
  9. slickvaio

    slickvaio Newbie

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    Hara, I listened to the wav file you sent - seems like grinding to me. I don't know how to fix it myself, but I would first google 'vaio fan grinding' or just 'laptop fan grinding' to see if anyone else has the same issue. It might be that your fan is rubbing up against some loose piece of metal or plastic, or maybe it needs some oil (I hear wd-40 works well). Failing that, you could get a new part online.
     
  10. sartre

    sartre Notebook Enthusiast

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    yeah it sounds like something loose is impeding your fan which would explain why it's getting so hot it's not able spin as fast as it's supposed to. And to the other guy with the rattling fan, did you try greasing it with wd-40? Mine used to rattle pretty bad before too before I fixed it that way.
     
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