“My Toshiba laptop suddenly shuts down by itself without any warning. Sometimes it works fine for hours, sometimes it shuts down in 10-15 minutes.” This complaint we hear from our customers over and over again. About 15-20% of all Toshiba laptops we get for repair, suffer from an overheating problem. Yep, OVERHEATING!

This is one of the most common problems with Toshiba laptops we deal with.

Indications of laptop overheating problem:

  1. The keyboard and the bottom of your laptop are very hot when the laptop is working.
  2. The CPU fans are working all the time at maximum rotation speed and operate much louder than before.
  3. The laptop suddenly shuts down by itself without warning. When it just started, the laptop was shutting down after 1-2 hours and how it shuts down after 5-10 minutes of operation.
  4. The laptop works fine when it runs idle, but shuts down as soon as you start using any memory demanding applications (DVD player, image editing software, video editing software, etc.).

Solution:

If the CPU heatsink is not clogged with dust and lint completely, you can use canned air and just blow it inside the laptop through the openings on the bottom and on the sides. It’s nice as a precaution measure, but it might not work if your laptop already has a problem and the heatsink is completely clogged.

  1. Open the laptop case, so you can access the CPU fan and the heatsink. In some cases you can access the heatsink through the latch on the bottom of the laptop. Sometimes (for example Toshiba Satellite A70/A75) you have to open the laptop case all the way down.
  2. Carefully disconnect the fan cables on the system board and remove the fan. If the fan makes unusual sound when it spins (grinding sound), I would recommend to replace the fan.
  3. Clean the fan and the heatsink with compressed air.
  4. I would also recommend removing old thermal grease from the CPU and applying new grease for better heat conductivity.

UPDATE: I just received a nice tip from MC N’Colorado. I think it could be useful for all of you with guys:

I decided to use a shop vac to suck the dust out and it worked. I tested it by letting the machine run all night and it worked. It’s been a couple of weeks now and I’m glad I did it. I was ready to take the machine apart, now I’m glad I didn’t. I’d suggest you use a heavy duty shop vac to clean out the fan and heat sinks first.

I agree. Try to fix the problem without taking the laptop apart first but I would recommend using a powerful air compressor instead of a vacuum cleaner.

If your laptop is still under warranty, you can take it to any Toshiba Authorize Service Provider and fix the problem at no charge to you.

Toshiba laptop disassembly guides with pictures and instructions.

 

Toshiba Satellite A15 Clogged Heatsink

Toshiba Satellite A15 Clogged Fan

 

Toshiba Satellite A35 Clogged Heatsink

Toshiba Satellite A35 Clogged Heatsink

 

Toshiba Satellite P15 Clogged Heatsink. Absolute champion!

 

Toshiba Satellite P15 Clogged Heatsink

 

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1,353 Responses to “Why my Toshiba laptop suddenly shuts down by itself without warning?”

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  1. 543
    Oscar Vasquez Says:

    Hi !, I have a Toshiba Satellite m115-s6010, she was working good as well alright.. few days ago I cant use it without the ac cable because the batt doesnt work. Its brand new.. just 2 month. I dont think its batt problems, maybe I touch a key at the keyboard that disable my batt to get used..

    Can anybody give me an idea or help me with.. I´ll be thanks full.
    Oscar V, From Dominican Republic.

    Thanks a lot!

  2. 542
    cj2600 Says:

    Dave,
    I think it’s possible that your problem is heat related. Clean the heatsink first, it’s really easy. You can easily access the heatsink (right cover on the step 2) from the bottom of the laptop, just unscrew one screw and remove the cover. It is not necessary to remove the heatsink, just clean it with compressed air.
    If the laptop still has the same problem even after cleaning the heatsink, run the memory and the hard drive tests (you’ll find links to these utilities in Resources).

  3. 541
    louise Says:

    hi, iv just been reading the advice about toshiba laptops overheating, all i can say is ‘PHEW’ do u guys know how stressed iv been. i thought my laptop was finished and our relationship over. i was at the point of jumping up and down on it and i cannot repeat the names iv called it. sometimes the stupid thing shuts down when im halfway through a letter or project before i save my work. AAAAARRRRGGGHHH !!! THAT IS SO ANNOYING. iv even put the power pack and battery in the fridge in desperation. Anyway i am now going to follow your brilliant advice and try to clean this mother thing i really hope it will work. i will let you all know of my success. thanks again guys Louise. xxx

  4. 540
    Dave Says:

    Toshiba M45-S355, bought August 05, built June 05 I think. Not under warranty.

    Good performance until this weekend, now I get freezing and freezing/rebooting.

    Is this more likely to be heat’n'dust related, or static, or some form of recent damage to the motherboard. I’m pretty sure I’ve not bashed it.
    If it is most likely dust, then I’ll risk taking it apart.

    Thanks a lot, this is a great, great site.
    Dave

  5. 539
    Dan Benton Says:

    Thank You for the information regarding solutions to my toshiba laptop heating up and shutting down. I simply sprayed the areas explained and problem resolved. I actually put the laptop in the closet and was getting ready to take it in for repairs. I am so grateful I found this site and learned from some very nice people. Thank You!

  6. 538
    Mitul Gadhia Says:

    The vacuum cleaner idea worked for me! I can’t believe this is such a wide problem!

  7. 537
    cj2600 Says:

    Justin,

    Now every time I turn on my computer I have to reset my time.

    What kind of laptop do you have? Maybe you forgot to connect the CMOS battery?

  8. 536
    Salvo from Italy Says:

    Hi guys! I’m from italy. I’ve resolved the problem cleaining the heatsink! Now my laptop works correctly… I’ve also found a good guide at http://www.irisvista.com

    Bye

  9. 535
    Justin Says:

    Hi,

    I just followed your instructions, put the thermal grease on, cleaned the fans, and my computer seems to be running great. But when I turn on my computer I hear two loud beeps, followed by a black screen saying: Push F1 to resume push F2 for default configuration. Something along those lines. Now everytime I turn on my computer I have to reset my time. Also, when I try to log on to MSN it says I have problems with my IP address. Anyways, any advice would be great thanks.

  10. 534
    cj2600 Says:

    Arijana,
    I think you can purchase the recovery DVD for your laptop directly from Toshiba. It shouldn’t be very expensive. One of my customers got it for a different Toshiba model for about $40.

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