Oregon kicked off their campaign with a victory last weekend, but they made hard work of it.
The Ducks went into the meeting with Boise State as a 25.5 point favourite, but trailed by as many as 10 points during the first half, before going into the break 17-14 down.
They rallied after the restart, but the Broncos stuck around and it took a 62-yard touchdown pass in the fourth quarter to finally break their resistence.
Oregon won it 34-27, with quarterback Dante Moore going 28/37 for 378 yards and three touchdowns.
Jeremiah McClellan led the team in receiving with 150 yards and a touchdown off six grabs, while Jordan Davison contributed 90 yards and a TD on the ground.