Question about Toshiba Satellite A135-S2276 Notebook

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Watch movie online, I hear the sound of exclusion mous.Mous usb does not work, watch a movie to the end and turn out the comp. Another day comp will not work. Turn it on the button, turn the power on lights, hdd lamp, just on for a second. fan turns on, the DVD starts. but a black screen, nothing. No bios logo, not booting bios, nothing. I ask for help, if the problem is in the motherboard?

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  • 5,660 Answers


First thing to check is if the laptop is dirty inside. From your brief diagnostic statement this is what I suspect.

Second thing is to replace the Thermal Paste, and Thermal Pad.
Thermal Paste dries up over time, and repeated heating.
(A Thermal Pad is impregnated with Thermal Paste)


1) Laptops are cooled by air inside. The cooling assembly for the laptop, cools the hardware components inside the laptop.

Main article,

Specific area,

Here you see the cooling assembly.

The small multi-bladed Black fan, sitting in the aluminum d-shaped shroud; is the Fan Assembly.
The curved copper tube is the Cooling Tube.
To the right of the D-shaped fan shroud, and copper Cooling Tube; is a rectangular finned Heatsink.

At the bottom of the Cooling Tube is the small metal plate, that sits on the Processor. It's mounting screws are circled in Red.

The Cooling Tube is a slightly flat copper tube, that is sealed on both ends; and filled with Nitrogen.
Heat from the Processor is absorbed by this small metal plate, and then absorbed by the Cooling Tube.

The Cooling Tube transfers the heat up to the finned Heatsink.
The Tall, Thin fins of the Heatsink absorb the heat, then radiate it away.
Air flow from the Fan Assembly, helps carry heat away from the fins of the Heatsink.

Dust, dirt, lint, hair, food crumbs, name it, is drawn from underneath by the Fan Assembly.
This clogs the fan blades, and fan shroud; and fins of the Heatsink.
The cooling capacity drops tremendously.

One example using a Dell XPS laptop,

See that thick 'dust bunnie' he removed from the finned Heatsink?
You wouldn't believe the amount of 'Gunk' I have found in laptops!
That video pales in compare!

(Tobacco smoke is a good one. Sticky gummy residue. So is carpet deodorizer. EVEN spider webs!)

The Processor, and graphics chipset; are the two hardware components that give out the most heat.
Desktop or laptop.

When a Processor overheats it turns off. (BIOS turns if off)
This is a fail safe feature built-in. Keeps the Processor from burning up.

2) The top of a Processor, and the top of a graphics chipset, (GPU), are not perfectly smooth. Neither is the bottom of the metal plates, that sit on them.

A magnified view would detail, "Hills, Valleys, and Pitholes'.
When the two components are placed together (Processor/Cooling Tube plate; Graphics chipset/Cooling Tube plate), there are air pockets that are created.

Air is an Insulator, not a Conductor.
Thermal Paste fills these imperfections, and is an Excellent conductor of heat.

Thermal paste dries up over time, and repeated heating. Looses it's thermal conductivity properties. (Thermal Pad is impregnated with Thermal Paste)

This is why is is conducive to THOROUGHLY clean the old Thermal Paste off, (and peel the Thermal Pad off), and replace the Thermal Paste. (And Thermal Pad on graphics chipset)

As in the previous solution, USE an ESD wrist strap, and have it's alligator clip attached to a good ground source.
Do NOT use one, and prepare to use the laptop for an expensive doorstop.

For additional questions please post in a Comment.

Posted on Dec 12, 2012


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SOURCE: M35X does not boot up

Its a design problem with the motherboard and where the power plugs into the board. It breaks and you have to buy new board or throw away the laptop.

Posted on Aug 18, 2008

  • 1 Answer

SOURCE: Toshiba laptop will not turn on, screen is completely black

Don't pay attention to your uncle. I had the same problem. Blue ring, power lights on. Sometimes the laptop would come up after a few minutes and then would freeze. It is a power problem. The AC jack may be broken and, most likely, you need to get the MAX1632A power controller (a 40-48 pin black IC next to the AC jack) resoldered too (get someone qualified to do it, with the right soldering station for surface mount work). Look for a complete answer at
Comment #202, by Jerry.
I followed his instructions and got my laptop back from the dead


Posted on Oct 18, 2008

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SOURCE: Toshiba Satellite M45 S331 PSM40U-01R001 will not power on

No.. the problem has nothing to do with your battery....

Yes Quite Possibly the motherboard is fried...

Posted on Nov 18, 2008

Nate Dawg
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SOURCE: Toshiba Satellite a215-s7437 will not boot at all - black screen

It sounds like two possible things. One thing may be that your screen is not working anymore. Can you get a monitor and plug it into your port located on the side of your laptop? If your screen pops up on the monitor this tells us your screen is either in need of replacement or a connection may be loose.

If that is not the case......

Another thing is your hard drive may not be initiating. If you feel confident enough I would open the back where the hard drive is located and make sure the hard drive is not loose. Does it give you any beeping sounds when you turn it on? Can you count the number of beeps? This will tell you what the problem is on boot up. Also, is it a black screen with a cursor blinking?

Posted on Mar 14, 2009

  • 51 Answers


it sounds like a hardware problem. I would say your high voltage board that drives your lcd has blown probably the caps you buy new on-line and replace it. send to factory service to have fixed. get fixed on warranty if you have it.
please let me if I helped

Posted on Mar 21, 2009

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