I'm about to change our powersupply for our TriCaster 460 to a new one (the fan makes an annoying sound a few minutes after startup).
We recently got a new PSU from our reseller (sent to them from NewTek).
What I can see now is that our old PSU is 500W, and the new recommended is a 430W. How come?

According to the specs for the TC 460 it says 430W, but why was there a 500W installed in the first place?
Is there a reason there is a "hardware downgrade" of the PSU?

Best regards