My Toshiba Satellite P105-S6024 notebook computer, Model # PSPAQU-02S01M, is unresponsive and won't start up. Please help if you can.
I am operating on Windows XP Professional (Media Center Edition), SP 3, 32-bit. Machine has power; on/off indicator light is on; battery light is on. The battery seems to charge. I can hear the fan running.
The display is totally dark; USB ports and devices are not working, including optical mouse. Keyboard and touchpad are not working. Tried F5 key in attempt to revive display but to no avail.
Here's the background: The trouble all started when I tried upgrading RAM memory modules. When I tried to power up the machine, I got no response whatsoever, not even beeps. I tried reseating the modules but still no results. No lights, no fan sound even.
I reinstalled my old memory modules that had been working moments earlier. The computer was unresponsive but this time showing the power light, on/off light and battery light --- and I can hear the fan running. When it powers up, the disk light shows for a second or two.
(The touchpad has been unresponsive since a few days ago when I adjusted my mouse settings in the control panel. I couldn't get the touchpad to work again after it mistakenly got shut off.)
I am assuming the memory modules I received from Toshiba Direct are incompatible with my computer and that installation caused an emergency internal power shutoff or that they shorted something out.
What should I do? Is there some kind of internal power research switch? I have looked online but found no answer to that question about a reset. Any help would be greatly appreciated.