Toshiba C55t-A5222 not booting up...

[radiatedpi]

So this is obviously a hardware problem, but I can't figure out what the hardware problem is. When I press the power button, the fans turn on and the power button glows, but the screen stays off and the pc never boots up. I know it isn't a screen problem because I have a mouse that when plugged in, stays white until the pc boots up. I eventually got it to start, but when the toshiba logo appeared on-screen, I noticed a few pixels here and there were red or green. I adjusted the laptop in my lap a bit, and suddenly the whole screen gets covered in green pixels, followed by white pixels and the whole screen becoming distorted. After that, it booted off with a "click". I had troublr turning it on after that, as it would almost immediately "click" off every time I tried. That eventually went away, but now I'm stuck in the same position where when you turn on the laptop it stays black and trying to turn on. What's wrong, and how do I fix it?

 

[webworkings]

Try this...

1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.

NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.

If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.

If you can't see on the external monitor at all, or the problem occurs on the external monitor as well, then it is probably the graphics card/GPU that is the problem, which may require the motherboard be replaced.