My new Studio 1535 (3 days old) auto shutdown outside Windows. No matter what I do, Even inside the BIOS, it still auto shutdown.

The funniest thing is when I can enter my OS the there won't be any problem.

My OS is Window Vista Ultimate. My notebook's having all latest BIOS and Drivers from Dell website.

I've already tried to remove the battery and use the AC power, and only battery with no AC power and loaded default bios setting

still having the same problem.

 

Please help me to solve this problem.