My notebook won`t boot unless it is very cold

[mike1333]

Hi..I`ve got a PCG-GRV616G Notebook and have been using it without any problems for 2 years.Now a very strange thing has happened...it won`t boot under normal room temperature !! So what I do is putting it outside for 5-10 minutes which is getting it realy cold because it`s winter,then take it in and it boots and works normally......This sounds crazy but it`s no joke..I went to a computer repair shop but they had no clue what to do about it.
Is there anybody out there who can help me or has had a similar problem ??

[midnight44]

The boot process doesn`t start at all....the green light goes on, you hear the engine running , but the screen stays black...

Hi!

I have the same problem - with the difference that I haven't tried the "cold booting" and when it DOES start then it wil freeze after a while - screen becomes black and it doesn't react anymore. Have to shut it down by pressing the on/off button for 5 sec. Then it won't boot until... sometime later if at all.

But when it DOES boot, then everything is running perfectly so I cannot imagine the mainboard could be really damaged as to have it exchanged and pay 360 UKP for that!