Today after accidently dropping a screwdriver onto my keyboard my computer froze. After rolling my eyes at my stupidity I powered my laptop down. Now here's where the trouble begins. When I go to turn on the laptop the power button lights up, so does one small button, and the fan start running. Then the buttons turn off and the fan stops for a second and then goes through the motions of turning the buttons green again and the fan powering up. However soon after the lights go out along with the fan. I have no idea what I can to fix my computer, can someone please help??

Btw, I have a acer 4315.