Murray has made one change to his front row, with Ava Fannin starting at loosehead, alongside captain Beth Cregan and Aishling O'Connell.
Keelin Brady and Taryn Schutzler retain their places in the second row. Sophie Barrett and Maebh Clenaghan remain in the back row, with India Daley starting at 8.
The partnership of Laura Cairns and Abbey Moyles at scrum half and fly half respectively is retained for Round 3, with a centre partnership of Kelly McCormill and Emma Jordan.
The back three sees last week's try scorer, Niamh Marley, start on the left wing with Maeve Liston on the right and Ella Durkan starting at full back.
Bronach Cassidy, Megan Brodie, Brittany Hogan, Stacey Sloan, Brenda Barr, Rachael McIlroy and Toni Macartney will provide options from the bench.
Ulster side to face Connacht Rugby, Round 3 Vodafone Women’s Interprovincial Championship, Saturday 19 August at Energia Park (KO 2.30pm), live on TG4 TV.
(1-8) Ava Fannin, Beth Cregan (C), Ashling O'Connell, Keelin Brady, Taryn Schutzler, Sophie Barrett, Maebh Clenaghan, India Daley
(15-9) Ella Durkan, Maeve liston, Kelly McCormill, Emma Jordan, Niamh Marley, Abby Moyles, Laura Cairns
Replacements: Bronach Cassidy, Megan Brodie, Brittany Hogan, Stacey Sloan, Brenda Barr, Rachael McIlroy, Toni Macartney.