Does your machine do anything ?? As in, does it POST ?? Does it boot ?? Can you get into the BIOS ?
With the way you are describing the problem, my initial thought is that your motherboard is faulty, however, with more detail we'll be able to pinpoint the problem.
The No Ma'am commandments:
1.) It is O.K. to call hooters 'knockers' and sometimes snack trays
2.) It is wrong to be French
3.) It is O.K. to put all bad people in a giant meat grinder
4.) Lawyers, see rule 3
5.) It is O.K. to drive a gas guzzler if it helps you get babes
6.) Everyone should car pool but me
7.) Bring back the word 'stewardesses'
8.) Synchronized swimming is not a sport
9.) Mud wrestling is a sport