I have a Toshiba Portege r500. When I plug it to power supply, the solid power led swithces on, and if battery is connected starts to be charged regurarly. But when I push power on button, the power led swithces off for a while, and after switches on again, but laptop does not boot-up.
Rarely the problem disappear, and the laptop boots-up.
Seems that there's a short on motherboard that stops power supply circuitry when power on button is pushed, that sometimes disappears.. I've tried to unplug all devices (wifi card, ram socket, auxiliary boards, dvd, hd) but problem stays there...
Any suggestions on how to find the problem??
Rarely the problem disappear, and the laptop boots-up.
Seems that there's a short on motherboard that stops power supply circuitry when power on button is pushed, that sometimes disappears.. I've tried to unplug all devices (wifi card, ram socket, auxiliary boards, dvd, hd) but problem stays there...
Any suggestions on how to find the problem??