He is expected to sign his letter of intent this weekend.
The 6-foot-3, 175-pound Payton, nicknamed "The Mitten," chose the Beavers over Utah, St. Mary's, and Seton Hall.
Payton II, a sophomore at Salt Lake Community College, visited Oregon State last month. Payton, 20, is averaging 9.4 points and 6.8 rebounds and almost two assists per game this season.
"It'd be a very big challenge," Payton II said in a interview last week with The Oregonian. "There's pros and cons to that. I believe that it'd be all right. It'd be a lot of help, too, in different ways."