My iMac G5 won't boot!

Hi Everyone!

Today I picked up 2 "for parts" iMac's. One of them is an iMac G5, and no matter what power cord I plug in. I don't have the original cord. I have 2 general computer power cords. The fan doesn't even start spinning! I have been with Mac since 2004, and love Mac. Any help?

17 Inch iMac G5