“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

 

Laptop Repair Videos

 

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1,116 Responses to “Why my Toshiba laptop suddenly shuts down by itself without warning?”

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  1. 880
    Laptop Overheating Says:

    Instead of using a vacuum to suck the dirt out, you can use compressed air to blow the dirt out. It all depends on how the air flow works; sometimes a combination is best.

    It’s also important to always keep the computer on a hard surface like a lap desk so the air vents don’t get blocked. A chill pad with little fans can also help in extreme cases.

  2. 879
    Paul Brownlee Says:

    Very Useful article, Fnd after 16 mos in IRAQ my son’s laptop was filled with sand even though the rest of his units HP.s, Dells, Gatewqays and Panafonics all bit the dust 6-8mos prior to his Satelite A75. His was P/S connector. After,… second disassembly and clean out. I planed CPU & sink used artic Ag and reassmbly’d only to find twice as long between shutdowns. Determined factory repair of P/S jack cracked a layaer on MB and that leaves it subject to Thermal Shutdown during first boot up once past the user login runs 2-3 + hours just fine DVD etc.

  3. 878
    nat Says:

    i have a toshiba satellite it started shutiing of and th screen going dark while it was running two weeks after i puchased it…..

  4. 877
    Saul Says:

    I’ve been having my laptop screen turn white then it restarts itself. Do u know what the problem might be? Would apreciate any help.

  5. 876
    Kev Says:

    i’ve tried using a home vacuum cleaner to directly suck out the dust from my toshiba satellite m100 fan. And then when i turn it on again, my fan doesnt move anymore. It died. Now i’m thinking to replace it with a new fan but i’m not sure how to DIY for fan replacement. would appreciate any help/advice.

  6. 875
    Martin (Martian) Says:

    Laptops can get hot very easily. I’ve had two Toshiba Satellite patients(!) and never suspected overheating. (My own computer’s (an Averatec) overheating problem was solved by hot-wiring the fan-wires to the USB port so that the fan stays on all the time. (I stopped trusting the internal sensors after my computer shut off all by itself, like the Toshibas).
    I also cleaned the interior,(heatsink, etc.) but prefer the non-invasive surgery option: The power-vac;
    considering the possibility of damaging the internal organs of the patient [cpu, etc.] The vacuum-cleaner procedure seemed like a viable option, albeit somewhat noisy.
    Now my computer’s internal sensors record temps around 40 degrees Celcius, and my comp never goes to sleep on me again!

  7. 874
    Vassil Says:

    i bought a toshiba satellite A305, great laptop and everything but keeps shutting off, not every 15 mins but if i leave it on my bed (for 2 mins) it shuts off.. and the place where the hot air is supposed to go out from, well lets say nothing goes out from there.. what could i do.. i dont want to open it up, its 2 months old!

  8. 873
    Jeanne Rose Says:

    My stepson has a Toshiba laptop and the power cable connection appears to have come away inside the laptop so it now cannot be used on mains or recharged. Returned it to PC World who initially said prob could be overheating. Sent away under warranty (under 6 months old) but now saying it is misuse and will not repair free!! As overheating with Toshiba’s appears to be a problem has anyone had a similar experience which I can highlight to PC World? Comments appreciated

  9. 872
    Neil C Says:

    Hi there. I have a Toshiba P35-S609 which started behaving like it had a heating problem. One day it packed up completely and now it won’t even turn on. Dead. Could this be a heating problem which has just fried the processor, or do you think it could be a failed memory or HDD? Any advice appreciated!

  10. 871
    Tashia Says:

    I have an Alienware Aurora 9700, vista ultimate, recently I did a system restore. Before this system restore my laptop never shut down automatically even when it was getting hot, but now after I did it, the laptop shuts down on its own whenever it uses a bit more memory. Is there a way I can remove this problem? I tried to check under bios and it didn’t give me any options for anything like that.

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