“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.).


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. 1333
    cj2600 Says:

    @ 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”.

  2. 1332
    Vuong Says:

    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 :/

  3. 1331
    Lino Says:

    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.

  4. 1330
    mara oton Says:

    I have an hp pavilion g6. when shutdown, restarts automatically after a couple of seconds. I remove keyboard, dvd, wireless card still problem exist. Remove the ac adapter, battery and pressed power button 30 seconds, still the same. when ac adapter is connected (without battery) it starts automatically without pressing power button. only way to turn is press the power button or disconnect ac adapter. thanks in advance for the help.

  5. 1329
    cj2600 Says:

    @ Dennis Molnar,
    Is there a Wi-Fi switch on the front side of the laptop? Is it turned on?
    Also, check the device manager. Can you see any errors in there?

  6. 1328
    Dennis Molnar Says:

    I have satellite A305 and can’t detect any wireless WIFI .I downloaded realtek drivers for WLAN What else can I do ?

  7. 1327
    douglas Says:

    i have a toshiba satellite (l655-s5159) and i turn the computer on and after like 10 seconds it turns of prior to turning off the fan speeds up then the computer just dies what can i do im going crazy

  8. 1326
    Lillian Says:

    this is more of a reply with question i have same issues it powers on but just as fast shuts down maybe i get as far as window logo. mine is a Satellite P745-S4320 bought last year 2012 just this past spring [i hardly used it maybe once or twice a month] when it started doing this
    i have been reading a lot of same issues different models
    why isn’t toshiba having any recalls or alerts to this?
    very disapoointed in toshiba have a tv over 15 yrs still works great very disappointed indeed

  9. 1325
    greg Says:

    I had similar problems. It was not due to overheating though. I did vacuum out and then blow out the dust — not very much came out. I then monitored the temperature using the Toshiba Health Monitor. It was fine but I kept having random shut downs as well as random disconnects from my wireless router! It was not the router- my roomates computer had not problems with the router.

    I read at another forum to try updating the TVAP (Toshiba VAlue Added Package.) . I did and PROBLEM SOLVED!

    I have Toshiba A665-S6055 model laptop running Win 7 – 64 bit.

  10. 1324
    dominic yeboah Says:

    my toshiba satellite delays when opening applications,what will be the course. i tried checking the hard drive,(chkdsk)also i tried defragmentation and even installing a new windows but the problem still persist.

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