Go get a new "cmos battery." If that doesn't fix it shop for a new mainboard.
I have a Sony Vaio FS VGN-FS570. I know that I need a new battery, but even when it is plugged into the dc outlet it will not boot. It does not resond at all when I hold down the start button. I am not certain of where to go with this, the battery, the dc outlet, the computer itself?
Any help in pointing me in the right directio would be appreciated.