[CentOS] Linux on an ancient Macintosh G5?

Has anyone experienced the conversion of the aluminum chassis Mac G5 to a
Linux box? Curious in Pennsylvania.

I need to obtain the power cable somewhere to try it.
It is a 64-bit monster,  so seems like it is worth trying if I can
find the weird cable it needs. No luck to date regarding the cable.
Thanks.

The Bears will never win until number six leaves.