Toshiba suddenly shuts down by itself

posted in: Overheating, Toshiba Problems | 1,340

“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 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 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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1,340 Responses

  1. cj2600

    @ Kara,
    Take a look at this post.

  2. Same problem here… I found a great tutorial to help take apart the laptop and clean the fan, but what’s the difference between the fan and the heat sink? I can’t find the heat sink indicated on any diagram.

  3. cj2600

    @ DJ,

    As my laptop HDD was crashing, I bought new one and installed OS using another laptop.

    Does it mean that you installed Windows OS on a different laptop and than moved the hard drive to your laptop?

    Now, when i turn on my laptop, still the first issue is there regarding overheating.

    Check the cooling fan. Does it spin at all? Maybe the fan failed.

  4. Hi, I have a HP g42 notebook.I had overheating issues.If i don’t press ENTER during windows start up initial stage and just leave my laptop, on that screen it shuts down.

    Later on i disassembled my laptop and cleaned my laptop and heat sink. As my laptop HDD was crashing, I bought new one and installed OS using another laptop.

    Now, when i turn on my laptop, still the first issue is there regarding overheating. previously when I turn on my laptop, and after i get to ADMIN password screen, it used to stop overheating but now when i turn on my laptop and even get to desktop, within 3 mins it shuts down.

    what is the issue..Need help..please.. you can email me in my gmail account..( djdmus66 ).

    Thank u in advance.

    Regards

    DJ

  5. cj2600

    @ hellen,
    Try removing memory (RAM) modules one by one. This could be memory related failure.
    Test your laptop with only one RAM module installed. Try different modules installed into different slots.
    If the problem still exists, most likely this is motherboard related failure.

  6. hellen

    2014/05/17
    I buy toshiba just only one year and also i used a few time,
    I have same problem :
    toshiba L655D after turning it on cpu fan turns at its full speed and no display on screen or in external monitor. This happened when i close the lid of the laptop for 15 minutes because of something done. When i open the lid, no more display on screen. remove the battery and connect power cord, no luck. pressing power button for 60 seconds no luck also. Any help is greatly appreciated.

  7. When using compressed air to clean fans heat sinks I always use a small screw driver tooth pick to keep the fan from turning,
    using compressed air can ruin fan bearings by over spinning the fan
    I learned the hard way

  8. cj2600

    @ Vuong,
    Shutting down not properly might damage the operating system. You need a UPS battery backup.
    Quote from Wikipedia: “UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source, typically mains power”.

  9. the place where i live suffers from iittrmnteent power outages..i never know when will one occur and my pc ends up shutting down NOT through the normal process which happens at least twice a day i wonder if it will have any detrimental effect on my pc/hardware anything..its an expensive machine :/

  10. My toshiba L655D after turning it on cpu fan turns at its full speed and no display on screen or in external monitor. This happened when i close the lid of the laptop for 15 minutes because of something done. When i open the lid, no more display on screen. remove the battery and connect power cord, no luck. pressing power button for 60 seconds no luck also. Any help is greatly appreciated.

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