Hi I have a Toshiba Portege M405 Laptop that is just over a year old and just out of warranty.
The problem is that about 90% of the time when I hit the button to turn it on all that happens is the power light comes and nothing happens. Other times the power light flashes yellow and the cpu fan comes on full speed. I then hold the power button to get it to turn off and have to try again.
This can happen dozens of times before it will actually boot. Once it actually does boot the computer works perfectly until I turn it off again. Then its any body's guess when I can get it to start again.
Things I have tried:
-I have removed the hard drive, it still wont boot at all even to the bios.
-I have tried removing the memory one stick at a time and have run memtest on it. Came up fine.
-Have disassembled it and looked for loose connections or cold solder joints, re seated everything. This didn't change anything.
Thanks for any help that you might have.