HELP!!! Precision 7510 shutdown unexpectedly and couldn't turn on

Hi everyone! I'm using the Precision 7510. While I was using it for only 10 minutes, the laptop shutdown unexpectedly and now it couldn't be turn on, just black screen and the power light only light up for 3 seconds. I've tried to remove hard drives, ram, battery but still couldn't turn it on. Does anyone have the solution for this? Thank you!