System wont power back on HELP!!

Pghkevy

Distinguished
Oct 6, 2012
37
0
18,530
System was built over 3 years ago, has been running fine. today i was online, and got the spinning mouse cursor, then the whole thing froze. i waited a while and still nothing so i had to reset. Now the system won't power back on at all. no lights on mobo, no fans, nothing. I pulled the psu cable and did the paperclip test and it powered up the fans. what's my next move?
 

Pghkevy

Distinguished
Oct 6, 2012
37
0
18,530
cpu - intel i5-3570k
mobo - asrock z77 extreme 4
memory - gskill ddr3 1866 2(4gb)
psu - corsair cx 500
boot drive samsung 840 120gb
running windows 7 home premium 64bit