According to the search on the webs, the power supply of z600 is delta dps-725ab a rev: 04f and has the 80plus icon as shown,
and my power supply is delta dps-725ab a rev: 05f does not have the 80plus icon.
So is this a fake power supply? There is a difference in the notation is 04f and 05f, I wonder if my PSU has 80plus or not. Sorry for my bad english.