“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. 293
    cj2600 Says:

    Wayne,
    I think that 60 degrees Celsius is a little bit high. I tested my Pentium M 2GHz CPU and it runs at 46-50C.
    Here’s what I found on their website:

    Due to the unique shape and sizes of the particles in Arctic Silver 5′s conductive matrix, it will take a up to 200 hours and several thermal cycles to achieve maximum particle to particle thermal conduction and for the heatsink to CPU interface to reach maximum conductivity.

    So, just wait for a while and see if the temperature goes down.

  2. 292
    christina Says:

    I have a 1905-s303. I used to have the overheating problem but fixed it by cleaning the heatsink and every few months thereafter cleaning it. My problem now is when I plug in the dc power adapter sometimes it shows it charging and sometimes not. When I wiggle a little the light goes on to show it charging. Sometimes it stays like this for a long time and sometimes I have to keep playing with it for a while. I read about the plug coming apart from the motherboard and re-sodering it there can fix the problem. Any news on this issue as replacing the motherboard isn’t worth it. If I want to check if this is indeed the problem do I check from the back of the computer or do I need to disassemble the front (which I have never done before) and am not quite sure how to do. Thanks for any help or advice.

  3. 291
    Martin Says:

    Hi
    I have a fan problem with my Toshiba Satellite Pro 6000. It dosen´t turn on by it self when the laptop gets to hot. But the fan is not damaget because i can control it with the program: SPEEDFAN. The fan also starts when i start up in bios upgrade mode. Without SPEEDFAN the laptop crashes after few minutes.

    Btw. Its all clean and the fan sounds nice and ok.

    Sorry for my bad english, but i hope you can tell me what the problem is? And how to fix it.

    Great site and best reguards from DK

  4. 290
    Steven Says:

    I have dealt with the overheating issue on my A65-1068 too, but my problem now is that it keeps restarting and going to the Windows Advanced Menu. No boot method works (Safe modes or CD-ROM), so it makes me think it is a HW issue.

    Any ideas?

  5. 289
    Wayne Says:

    My TE2100 will occasionally shut down by itself, so I thought it is due to overheating. However, I took out the HSF and did not see any clogging. I removed the thermal grease from the processor and HSF and reapplied some AS5 on it.
    I assembled everything and switched the laptop on, but the temperature is about the same as before.
    AS5 needs some time to perform optimally, so maybe it is due to this?
    I used a program called MobileMeter to check the temperature.
    It ranges from 60 to 64 degrees Celsius. Is this OK?

  6. 288
    cjones Says:

    This is about as cheap as you will find for a new lcd for this laptop. Or you can order from toshiba for an extremely high price. I would check and see about how this will affect your waranty if you replace the screen though or you can do it and just not tell them anything :) . If you are interested in selling your damaged screen let me know.

    jnsantqs at cyberback.com

  7. 287
    Garvin Choa Says:

    Hi,

    Does anyone know where to buy or replace an LCD screen cheaply for a toshiba p35-s629? Warranty won’t do anything unless there’s like 7 or 8 dead pixels. I have 2 right now, but it’s annoying the heck out of me coz I paid so much for it and I expect the screen to be perfect. Any suggestion will be really helpful. Thank you.

  8. 286
    Mike Says:

    Benard,

    I was able to locate a 2.8GHz P4b Northwood. It requires the same wattage as my 2.8 GHz Celeron and the same voltage. The FSB on the P4 is 533 and the FSB on the Celeron is 400. Will it still work? The thermal design power for both processors is 68.4 Watts and the voltage for the Celeron is 1.25 to 1.52, the voltage for the P4 is 1.52, I am also upgrading the expansion ram to 1Gb for a total of 1.25 gb. I know I am pushing the spec’s to the max but hopefully this will give me the performance I need without purchasing a new laptop. I will also be placing a triple 60mm fan cooling pad under the machine.

    Many Thanks for your advise!!!!

    Mike

  9. 285
    Mike Says:

    Thank you Benard,

    I need to dis-assemble the unit anyway. I had an overheating issue with this machine. I found your website and followed the directions to clean it. the temp dropped to 70 C but it still freezes up and runs consistently at 100%. I know i need to change the thermal grease if I havn’t burned out the processor. I was thinking this would be a good time to up-grade the processor since I have to dis-assemble the unit . You assistence is greatly appriciated.

    Mike

  10. 284
    Bernard Says:

    To Mike: Question 283

    Yes you can change the Processor from an Celeron to a P4. Now the bad part. You must take the computer apart to gain access to the processor and remove fans, heatsink and processor. You will need new thermal grease to re-attach to heat sink. Now the most important part to remember you must find a compatable P4 that has the same or lower wattage rating than the Celeron. If you don’t the computer will overheat. I changed a Celeron 2.4G to a P4 2.0G with a lower wattage rating and the computer performed much better.
    Good Luck

    Bernard

Pages: « 13635 34 33 32 31 [30] 29 28 27 26 251 » Show All

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