Question about Toshiba Satellite A15-S157 Notebook

1 Answer

Heat Sink Hi guys, Well I tried the heat sink, Cleaned off the old and installed new heat sink...this didn't seem to fix the problem...any suggestions for the next thing to try fixing this shut down problem..? Is there any other reason why my notebook is just shutting down..? when I restart it after it shuts down, the time it shuts down is usually 1 to 3 minutes...Thanks ,,,Michael

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has achieved Level 3.

  • Master
  • 788 Answers
Re: Heat Sink

Sounds like the power circuit on the motherboard could be faulty. Look for any leaking capacitor on the board, may be fixable by replacing the component. It's easier but more expensive to replace the system board.

Posted on Jan 16, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

2 Answers

Computer not responding at all

If it burnt a new HDD then the problem could lie somewhere on the mobo. If it's still under warranty, i'd suggest RMA. Otherwise, you will have to take it back to the computer repair shop and listen to their suggestions.

Jan 09, 2014 | ASUS Eee PC 900 Notebook

1 Answer


Just take the laptop apart and install the new board. Be sure to remove components you need from the old board such as the cpu, memory, heat sink, etc if they are not on the new board. Also remember to apply a fresh coat of Thermal Paste around the cpu and heat sink.

May 30, 2012 | ASUS Eee PC 701 Notebook

1 Answer

I took apart and used dust sprayer on fan and cleaned it up good, but what is the heat sink I'm reading about? I only did the fan blades and area around it thinking that did it but it still shuts off ....

Heat sink is usually connected to the fan by copper tubes or fins, this is what disperses the heat from the CPU to outside the case. Sometimes the fan is directly on top of the heat sink but more often now the heat sink is next to the fan and outside air is drawn through these copper fins to remove the heat from the CPU.

Mar 15, 2011 | PC Laptops

1 Answer

The vents have been cleaned, so have the fans....anything else that can help.

yes! remove the heat sink from the cpu processor and remove the old thermal conductive grease from the cpu and heat sink, then apply fresh thermal conductive grease to both and assemble, make sure all dust and dirt has been removed from the heat sink fins

Dec 30, 2010 | HP Pavilion dv6000z Notebook

2 Answers

My nv7802 overheats and shuts off,fan is running but the heat sink gets very hot

The fan may be running too slow (faulty bearing) or the fan and heat sink assembly may be clogged with dust.
Check the CPU fan to see if it spinsfreely, if not replace the fan. If the fan and heat sink is clogged withdust the remove the dust and make sure the vents are clear and dust free. Use acan of compressed air to do this.

Dec 30, 2010 | Gateway NV7802U Notebook

1 Answer

I tried disassemble the heat sink area for ASUS and then when i put back the heat sink area, the LCD would not work.

Hi, you will need to double check the position of the heat sink, also you must ensure there is sufficient gel between heat sink and cpu, this is quite cheep to purchase.
Hope this helps

Jul 24, 2010 | ASUS A8Js Notebook

1 Answer

Computer keeps shutting down on its own.

This is a difficult problem because I cannot determine the exact cause because of limited information.
This problem will need to be solved by trying one thing at a time.
Do not do all these together.
1. Reseat the RAM.
2. Remove the RAM and get it tested at your friendly computer store.
3. Reseat the hard disk
4. Run a virus scanning program on your computer/laptop
5. Check the fan to see if it spins freely, if not replace the fan
6. Loosen the dust from the fan and heat-sink assembly and remove/vacuum the dust.
7. Try removing the heat-sink, remove the old heat-sink compound and apply a new coating of heat-sink compound to the CPU and re-attach the heat-sink to the CPU.
8. Do a system repair with the Windows installation CD
9. If nothing works then re-install Windows, plus the laptop's device drivers and your programs.
You may need assistance from a computer savy friend to help you. Let me know how things work out.

Feb 04, 2010 | PC Laptops

1 Answer

When running video or playing games fan seems to run loud the whole computer shuts off

That means the heat sink processor is clogged and needs to be cleaned. When the computer can't cool down the processor, it detects overheating and shutdowns to protect the processor.

The back of the computer needs to be removed and the heat sink needs to be cleaned. I do not recommend you to do it if you have no previous experience cleaning computers.

Dec 23, 2009 | HP Pavilion dv4000 Notebook

2 Answers

Gateway 7405 GX Fully shuts down at random intervals

It sounds like a thermal shut down when the processor over heats,one thing it might be is that the heat sink is not seated properly on the processor.When removing the heat sink make sure you have thermal paste to place between the processor and heat sink.That should give you a good starting point.

Jul 28, 2008 | Gateway 7405GX Notebook

Not finding what you are looking for?
Toshiba Satellite A15-S157 Notebook Logo

Related Topics:

80 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba PC Laptops Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers


Level 3 Expert

5660 Answers

john smith

Level 2 Expert

366 Answers

Are you a Toshiba PC Laptop Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides