Laptop keeps rebooting

I have a Dell Inspiron 143452 i do graphic designs but i have an issue when i restarted my laptop it it rebooted but keeps me at the dell logo screen then to a blank screen then back to the logo and repeats that over and over again i tryed hard reboot i removed the battery and held down the power button for 10 seconds and put the battery back in and turned on the power and still i got nothing. I tryed pressing F8 at the logo screen but nothin shows up i cant get to Advanced Options i cant get to anything PLEASE HELP