Does your PC in any way ever turn on the screen? Usually when a computer starts it goes through a POST. Now if your computer would be working normally you would get a list of specs and/or some checks and such on your monitor (although some people have those tests hidden and have a boot picture instead).
Now I'm presuming your monitor stays off which means that either the monitor is dead (unlikely, since you said it was the PC that started acting abnormally) or that something went bye bye inside the PC. So either it was something that made your PC unable to reach POST or something that made it unable to show the POST on your screen. If your PC beeped at startup (question: did it beep before it crashed?) that might be a signal that it is reaching POST.
Here on Wikipedia you can read about error reporting during POST. If you can open your PC check if you have any "bios status" leds / displays you might be able to get the error easily, otherwise work with the beeps (if you have any) or get one of those status cards (samples on the wiki page).
Originally Posted by elihwy79
Don't post stupid shit 
Now I'm presuming your monitor stays off which means that either the monitor is dead (unlikely, since you said it was the PC that started acting abnormally) or that something went bye bye inside the PC. So either it was something that made your PC unable to reach POST or something that made it unable to show the POST on your screen. If your PC beeped at startup (question: did it beep before it crashed?) that might be a signal that it is reaching POST.
Here on Wikipedia you can read about error reporting during POST. If you can open your PC check if you have any "bios status" leds / displays you might be able to get the error easily, otherwise work with the beeps (if you have any) or get one of those status cards (samples on the wiki page).
Originally Posted by elihwy79
make sure every thing is seeded properly,reformat if that doesnt work,if u cant reformat id say fuck this comp and shoot the shit out of it!
