The Terps easily dispatched the Spartans behind Csire's 19 kills and earned their third straight conference win.
Csire had five kills and two service aces in the third set to turn a close match into a Terps victory.
The Terps finished their non-conference schedule undefeated with wins over the Seawolves and the Lions.
The Terps debuted their new-look squad on Friday, holding off the Cavaliers in four sets.
The Terps welcome nine new players to the squad.
The Terps played their annual exhibition match on Saturday at the Xfinity Pavilion, giving the first look of their 2021 squad.
Laila Ricks and Lexy Finnerty starred as the Terps claimed their first victory of the season.
The Boilermakers racked up seven service aces while the Terps had none.
After topping Indiana on Friday, the Terps couldn't put it together against the Boilermakers.
Hoosiers outside hitter Breana Edwards racked up 39 kills in the match.