Laptop: No power, no lights, no nothing.

SOURCE: Toshiba satellite a215-s7422 laptop wil not turn on

It sounds like the motherboard is bad. There is no power being sent to the fan and that means that somewhere in the the mother board is not sending the info.

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?

SOURCE: toshiba equium m40x won't power up

whats happening is that the cpu is overheating and shutting down the computer due to your fan not spinning, if you wish to test this remove the bottom panel and remove the fan and its cooling tubes should all be one part (quite easy 3 or 4 bolts) and blow on the cpu or put a pedistal fan facing it or any other form of cooling that wont damage it, and try to start it if it boots for a while it is the fan and you will need to replace it, i had this exact problem yesterday

SOURCE: Toshiba Satellite A55 Series S1063

The blinking power cord icon indicates that the battery is not charging, or is defective enough that it is overloading the charger. The laptop will not turn on unless it "thinks" the battery is charged enough to operate the computer. Even though you have the AC power connected and your adapter may be OK, it is still possible that:

1. The power jack in the rear of the computer may be broken or otherwise defective, as well as the electrical connections to it.
2. The wires and/or circuitry which connects from the power jack to the battery contacts may be defective.
3. The battery itself may be defective.
4. Can you operate the computer with only the battery?
5. DON'T try to operate the computer with the battery removed, as this can lead to a situation where the internal power supplies receive too high an input voltage. This varies from model to model, but it is generally something to avoid, since there is not much detailed information available showing the circuits in detail, we cannot make a good "guess" as to whether this may be a problem. Best to be on the safe side.
6. If you have checked the above items and have not learned anything new, AND, you have removed the battery and adapter, turned the computer off (not in that order, of course!), and let it sit overnight, and it still exhibits the same problem, that means you have "something wrong" inside the case which will require "major surgery". That is best done by a technician familiar with Toshiba laptops, and preferably, familiar with this particular model. He should also have access to proprietary Toshiba repair documentation and test procedures. I've learned from experience that it usually does more harm than good to "poke around" inside any computer if you don't know precisely what to look for, what to do, and how to repair problems you find. Unlike simpler electrical or mechanical devices of the past, you can't learn very much be observation and tinkering inside a computer! Too much is hidden from view, or depends on special parts which can't be fixed even if you determine they are defective; they must be replaced.
7. This is about all you can do from outside the case. If you notice any other symptoms, no matter how isolated or trivial they may seem, please let me know and I will see if there is anything else I can recommend. Unlike desktops, laptops are not made to be easily repaired by replacing circuit boards, add-in accessories, etc. They are pretty much self-contained. Once you determine that the problem is inside the case, first you decide if the laptop is still worth enough to warrant the hundred-dollar-plus cost the repair is likely to require, or if it would be better to replace it with a new model, or look for a used one on eBay or some other place. This is not a conspiracy by Toshiba; it is just what is necessary to get everything into the small package and keep the price within reason.

Toby Lee

• 409 Answers
• Posted on Aug 08, 2009

SOURCE: no singns of life

Sounds as though your ac adapter is bad.But it could also be the power jack where the ac adapter plugs in also.