How can i determine what problem i am have with my computer not starting up

freddy 05

Distinguished
Jul 5, 2011
1
0
18,510
Hello,
computer does not turn on at all. ive checked all connections inside. all that is on is a small led light next to the cpu. the system froze and my mother unplugged it since then it has never turnd back on. i have even put a new power supply in
:(