When my recently acquired DELL C1100 boots, its fans would rev up and slows down a few times before it boots completely.  At times, the sequence has taken up to 15 minutes.

At times, the BMC log records multiple Power UnitPower Unit sensor power loss messages.

Is this normal or and indication that my power supply is on its last leg?  Once booted, the server seems to work fine. 

Is there an "easy" fix, perhaps?

I am wondering if I should try to return the server.