Rebooting problem for Toshiba M-45 laptop?

Question

When i start my laptop(M45-S269 toshiba),fan goes crazy,screen goes black but it gives some signs that it is ok(from the sides i can see some light) and stays like that.Some times when i shake it,it starts rebooting.Updates are done,system failure check is done,eveything looks ok.ST is wrong but what?HDD i think but i don't know...

Answer 1

Something has to be shorted out or loose if you're shaking it and then it works...

It's not good to be shaking a computer -- I'd get it checked out.