Toshiba laptop won't boot up

  Dazman5 17:04 PM 08 Mar 13

Hi all,

Last night, I logged off my laptop as normal, and when I came back to it an hour later, it wouldn't boot up.

I have three green lights to indicate that it is fully charged and connected to the socket, but when I press power, it attempts to boot up for a couple of seconds and then stops, plus nothing appears on the screen. The three green lights remain on. When I hold down the power button for five seconds, you can hear it shut down, as you would if everything was working correctly.

I tried taking the battery out, and putting it back in etc, but still nothing.

Does anyone have any ideas? I presume it is a simple case of the motherboard breaking, but was curious to see if anyone thought it might be something else.

Thanks in advance.

  Fruit Bat /\0/\ 17:11 PM 08 Mar 13
  1. Turn off the computer,
  2. Take the battery out
  3. Take out the power supply
  4. Push the power button down for 30 seconds.
  5. Reconnect power supply leave battery off
  6. Attempt to boot
  7. If ok refit battery

Something else to try if you think its booting but nothing on screen is to cycle through the buttons which change from screen to external monitor (Fn (F5? blue square) or attach latop to external monitor or TV to check if screen failure.

  Dazman5 17:25 PM 08 Mar 13

Thanks for the reply.

I tried the taking the battery out and following the seven steps, but still the same.

It tries to boot for about two seconds, and then goes dead. I don't even get the logo (in this case, Toshiba) show up when attempting to boot.

I tried pressing F5 (and a lot more buttons!) but nothing. One thing I noticed when I pressed the 'FN' button is that a light flashed on the keyboard, but this didn't happen when I pressed any other key...not sure what that means, if anything?

  Fruit Bat /\0/\ 17:32 PM 08 Mar 13

You need to press Fn and the F key with the blue square at the same time to cycle the LCD panel / external monitor

  Bris 17:37 PM 08 Mar 13

Did you try connecting an external monitor/tv? It sounds as though it could be the screen.

If its not the screen, about the only other thing you could try is to reseat the hard drive and memory after removing the battery and mains chord and blow out as much dust as possible.

Unfortunately as its a laptop there is not much else you can do.

  Dazman5 18:09 PM 08 Mar 13

I haven't tried an external monitor, because that is something I have never done before so I'm not sure how to go about it.

After pressing power, I just pressed F5 and FN at the same time and nothing happened, so I turned it off again. The next time I have tried, it hasn't gone dead after a couple of seconds. It has been been doing something/making a noise like it is turned on for about three minutes now...but there is still nothing coming on the screen, it is completely blank, not even a cursor.

  Fruit Bat /\0/\ 18:56 PM 08 Mar 13

t is turned on for about three minutes now.. don''t switch off just keep trying the Fn F5 and leave for a few seconds between presses.

Can you see a faint immage on the screen if you shine a bright light on it?

This is sounding more like screen / backlight / invertor / LCD connector problem rather than a dead laptop.

What sort of connectors are there at the back of the laptop for video out?


Make and model of Toshiba?

  Fruit Bat /\0/\ 18:59 PM 08 Mar 13

LAptop to TV shows how to connect

In your case we just need to connect by cable to see if its the laptop or just the screen that is faulty.

  Dazman5 19:25 PM 08 Mar 13

I can't see any faint images after pressing the FN and F5. The laptop went back to it's 'two seconds and dead' way at first, but after a few attempts, it stayed on for longer.

My laptop has an HDMI option, and I think VGA too.

The Toshiba model is - Satellite L450D-11G.

I need to get hold of an HDMI cable so I can see what happens.

  Fruit Bat /\0/\ 19:58 PM 08 Mar 13

Is it shutting down completely after a few seconds?

If so then may be overheat due to block grills

  woodchip 21:36 PM 08 Mar 13

Go into BIOS screen look to see if Bios sees the hard drive


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