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Thread: TOSHIBA Satellite A105 fans not working properly

  1. #1
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    Jan 2013
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    TOSHIBA Satellite A105 fans not working properly

    Hello all,

    Recently I dug around in my garage and found my old laptop. Put Ubuntu on it and it's been running great. There is one problem though; the fans don't work properly. I believe this is a common issue with Toshibas under Ubuntu. After a suspend, the fans cease to spin and the CPU overheats, even when performing normal tasks such as browsing the web, resulting in an immediate shutdown with no prior warning signs.

    The computer itself runs fine, but this error has been annoying me to no end. The only way I can get the fans to work after a suspend is if I use lm-sensors and keep a terminal around and keep typing "sensors" in, but even that doesn't work. I tried sensors-detect, but it said that no controllable sensor modules were found.

    Another thing, when I do type in "sensors," the readout is

    Code:
    acpitz-virtual-0
    Adapter: Virtual device
    temp1:        +xx.xC  (crit = +105.0C)
    temp2:         +0.0C  (crit = +105.0C)
    temp3:         +0.0C  (crit = +105.0C)
    temp4:        +xx.xC  (crit = +105.0C)
    There aren't any CPU labels or GPU labels there to guide me into knowing which temperature is which. Either way, if I do not monitor sensors frequently, temp1 goes to 74C and temp4 goes to 65C. After I run sensors again, the fan immediately kicks in full blast, and then seems to correct itself, and temp1 falls back down to 49-55C and temp4 usually remains at around 47-48C. Both of these temperatures are far higher than they should be; I took apart the computer and cleaned out the entire heatsink and fan assembly of all dust and applied fresh thermal paste to the CPU and GPU. Even when my computer was dust-clogged, under Windows XP CPU temps would never go above 60C at full load, and idle temps used to be around 30-35C.

    So, without lm-sensors working, I'm left with no options. Please help; this computer was very expensive and powerful when I originally bought it in 2005 and still runs like a charm. If the fan problem can be fixed, I can hold out buying a new computer for 2-3 years!


    Model #: Toshiba Satellite A105
    CPU: Intel Pentium M Single-core 1.73 GHz
    GPU: Intel Mobile Graphics Chipset
    Hard Disk: Seagate Momentus 250GB 2.5" Drive
    Memory: Kingston DDR2 800MHz RAM (2 DIMMs)
    Motherboard: Toshiba Mobile Motherboard

  2. #2
    Join Date
    Oct 2009
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    Lubuntu 13.10 Saucy Salamander

    Re: TOSHIBA Satellite A105 fans not working properly

    First of all I would give a Pentium M Lubuntu and not Ubuntu.

    Which release are you using, by the way?

    Second, have you upgraded the BIOS?
    About problems due to upgrading
    Bringing old hardware back to life.
    Please visit Quick Links -> Unanswered Posts

  3. #3
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    Re: TOSHIBA Satellite A105 fans not working properly

    Quote Originally Posted by mrgs View Post
    First of all I would give a Pentium M Lubuntu and not Ubuntu.

    Which release are you using, by the way?

    Second, have you upgraded the BIOS?
    I'm using 12.10 currently. Also, any reason as to why I should use Lubuntu and not Ubuntu? Unity runs fine, performance is smooth and fast, and all Compiz 3D effects are working without the slightest lag.

    About the BIOS; unfortunately it can't be upgraded with GNU/Linux, the only upgrade method I found on Toshiba's website is Windows-based and I really don't want to go through the pain of reinstalling Windows, upgrading the BIOS, then switching back to Ubuntu and transferring my files back.

    I don't think it's a BIOS issue, however.

  4. #4
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    Feb 2011
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    Kubuntu

    Re: TOSHIBA Satellite A105 fans not working properly

    Most BIOS (F2 or del) at boot have options for fan speed or a cpu config where you can tell the computer how fast you want them to spin. While you are at the bios the fan will spin at an optimal temp where there should be a page with some cpu temps so you can compare how fast it sounds like it's spinning in bios to in ubuntu - that will at least eliminate the bios if you have not done it already.

    Does it do this on Windows and have you tried unscrewing the case to get at the fan to check that it's not full of dust or the small metal cooler the exhausts out of the case often gets blocked by dust.

    2005, be glad it has lasted this long. Check the hard drive too. If this is getting really hot it could be causing an overheat, but it's most likely the fan is, or the cooler is blocked.

    I think my phone has more computing power. Few more years!? Bin it kunai because it's not worth anything now!
    Problem solved? I probably just searched the web for it.

  5. #5
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    Re: TOSHIBA Satellite A105 fans not working properly

    Quote Originally Posted by JayKay3OOO View Post
    Most BIOS (F2 or del) at boot have options for fan speed or a cpu config where you can tell the computer how fast you want them to spin. While you are at the bios the fan will spin at an optimal temp where there should be a page with some cpu temps so you can compare how fast it sounds like it's spinning in bios to in ubuntu - that will at least eliminate the bios if you have not done it already.

    Does it do this on Windows and have you tried unscrewing the case to get at the fan to check that it's not full of dust or the small metal cooler the exhausts out of the case often gets blocked by dust.

    2005, be glad it has lasted this long. Check the hard drive too. If this is getting really hot it could be causing an overheat, but it's most likely the fan is, or the cooler is blocked.

    I think my phone has more computing power. Few more years!? Bin it kunai because it's not worth anything now!
    There was, I think, a BIOS configuration setting for the processor, but not the fan. There were three settings, I believe; high-performance, low-power, and auto. I had set it to high-performance to get a bit more speed out of it, but I'll try setting it to auto and see if the temps fall a bit.

    As for the question you asked (in bold), from the original post:

    "Both of these temperatures are far higher than they should be; I took apart the computer and cleaned out the entire heatsink and fan assembly of all dust and applied fresh thermal paste to the CPU and GPU. Even when my computer was dust-clogged, under Windows XP CPU temps would never go above 60C at full load, and idle temps used to be around 30-35C."

    As for binning it, I don't really like throwing away perfectly fine hardware. If it works for me, why not?

    I'll probably have to upgrade to a faster computer soon, though; the geekbench for this one was 1341. I think my friend's Galaxy SIII scored 300 points higher.
    Last edited by kunai; February 28th, 2013 at 09:21 PM.

  6. #6
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    Jan 2013
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    Re: TOSHIBA Satellite A105 fans not working properly

    Unfortunately, it didn't work. The idle temperatures DID drop by 5 degrees centigrade, but the CPU still overheated after a suspend.

    Any suggestions?

  7. #7
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    Oct 2009
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    Lubuntu 13.10 Saucy Salamander

    Re: TOSHIBA Satellite A105 fans not working properly

    Yes, the BIOS (still).

    At least on Dell you can burn a CD or USB stick with Freedos and boot it. From here you can apply the new BIOS. I don't know if it works on Toshiba.

    It surprises me that it runs Unity well, but congratulations. That means you have a computer for many years to come.
    About problems due to upgrading
    Bringing old hardware back to life.
    Please visit Quick Links -> Unanswered Posts

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