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Laptop Cooling Problem


I have an older laptop, a Toshiba A45-S151 and it has recently developed a bad fan problem. Either the fan does not work at all or when it does it runs extremely loud. I believe the bearings to be worn out from the 3 years of constant usage.

Unfortunately I cannot seem to find any documentation anywhere showing me how to access the main fan. I've pulled the thing as far apart as I could figure out to do without detailed specs (Toshiba's idea of 'detailed specs' is laughable) or diagrams and still have not been able to get into that small compartment.

I've upgraded the RAM and the HDD in the past, I've also cleaned the heat sink and 'cleaned' the inside with compressed air from time to time. Oh, and I've applied new thermal grease to the heat sink twice in the past. This knowledge however does not extend to getting to the fan.

Do you know of any documentation that could help me see exactly what I am doing wrong so I am no longer prohibited from replacing that part?

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Re: Laptop Cooling Problem

Don't think you will find any documentation online to help you disassemble. Unless someone around here has some Toshiba field service manuals in pdf form.

Sounds like you just need to replace the fan. They do go bad over time. Also, don't used high pressure compressed air to clean out a fan. Unless you hold the fan still using a small screwdriver. The compressed air, if too much, will ruin a fan's bearing if you let it spin freely while blowing out. The canned compressed air showed be ok though.

You can search on ebay for a replacement fan, might be used though. Could do a google search for a new one. Somewhere like

And I think the A45 may have two fans in it. If you can get inside of it, which sounds like you have allready, then you should be able to easily identify the fan(s).

Posted on Oct 29, 2007

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Hi there is a toolbar coming up the whole time saying,,,,,WARNING a problem with the cooling system has been detected, please turn of the computer and return for service immediately

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.

Welcome to FixYa! Based on the error you have received, this means that the cooling fan of your laptop needs to be cleaned and checked at. This is a common problem with any toshiba laptop. I suggest checking the heatsink of your laptop. 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.
  5. 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.
Hope this helps! Thank you for using FixYa!

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My fan in laptop is completely stop i suppose to fix it?

YOu didn't post the model number but you can order a new fan from the Toshiba website or possibly find one on Ebay and open the computer up and replace the non working fan. If you try running the laptop with out that fan it will over heat and you will burn your CPU out.

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I have just arrived home from Cananda to Australia, Toshiba laptop only 10 mths old and will not charge, a response says cooling fan not working, please help

Contact Toshiba, they will tell you where in Australia you can get the fan replaced, and if it is covered by the varenty.

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I have a Toshiba Satelite Laptop with a bad cooling fan

Contact Toshiba Parts  here

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How to fix my Toshiba laptop in cooling system please ?

you probably need to clean the cooling collects dust over time, and doesn't move the warm air out as it should...its fairly accessible by removing the bottom case cover...please rate my response.....

Jan 29, 2009 | Toshiba Satellite 1715XCDS Cooling Fan...

1 Answer

Dell Inspiron 8100 laptop cooling fans

All fans for cooling cpu plug into a small 2 or 3 pin socket usually white on the motherboard near to the heatsink your fan should have the lead coming from it
fans for video card sometimes takes the power from card or connect to board same as cpu fan but near video card

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The fan has failed - warranty if in the time period since purchase.

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emachine has laptop ?? what's the model ?

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Lenovo laptop shutdown suddenly after working for a while

Hi James, replace the fan or If it's still under warranty have it serviced. Suggest you stop turning it on until the fan is replaced. It could be the fan cooling the CPU. You don't want it to fry.
The shut down process is normal when over heating is detected by the system.

lenovo link.

Good luck!

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Toshiba cooling system

If u have a laptop (that's what i found out that toshiba Qosmio is ) then is no problem that the fans stop (as long as the temp. is within the normal working margins ). U might have a setting problem - a bad software, managing the cooling system; - a bad BIOS setting regarding system temperature protection; - or the temperature detectors malfunctions, and must be changed (if possible)

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