Its also the wrong PSU - it is the older, lower power LC / LC II style PSU, an ASTEC in factShhh!
He didn't mean that folks. Just a late April fools joke.
My LC 475 is an official body snatcher - someone bought the logic board upgrade kit with the sticker for the front case. Means the case has an LC II era serial number and the groove on the front of the case.
Don't worry though, I'm only overloading the PSU with a 53MHz OC, 7200 rpm 9GB disk and an ethernet card.