fans turn on then off a second later ( computer wont start up)

Chris_46

Reputable
Oct 16, 2015
1
0
4,510
Hi ive been having his problem for about 2 weeks now . I replaced the power supply and motherboard and running out of options. So when i hit the power button the computer turns on the fans start going then a second later it shuts off. What could the problem be. THanks chris