laptop booting problem

[RobTi]

Hi all
i have a dell inspiron 1300 that has started to refuse to boot, press power button and i get the 3 lights(no.lock caps lock etc) flashing and then nothing it switches off i can get it to boot sometimes by turning it on its side and repeatly pressing the power button.
I have stripped it down cleaned anything that looks iffy and reseted the cpu with new thermal paste
any ideas?
Thanks
Robert

[Will404]

CMOS reset (does it apply for lappy's)??. Would it work with no battery and mains power only???

[RobTi]

Thanks
Tried that also reinstalled 2 different OS (xp & ubuntu) also daughter has the same laptop and i swapped memory wifi card and the dvd\cdrw drive over but still the same
Robert

[eiamhere69]

I have a similar problem with my sisters laptop. Power button led lights up green for a couple of seconds then goes off. I assume this means that it isn't a problem with the power as it is getting through due to the power light.

It doesn't even post, nothing. I have yet to try a cmos reset.