Paddy Wallace scores a try in the victory at Lansdowne Road
Ireland (30) 61
Tries: Hickie, Wallace, O'Kelly, Easterby (2), Horgan, R Best, O'Connell
Cons: Wallace (6)
Pens: Wallace (3)
Pacific Islands (12) 17
Tries: Rabeni, Fa'atau, Pisi
Ireland completed a hat-trick of autumn Test wins with a thumping victory in the last international before Lansdowne Road is demolished and rebuilt.
Ulster fly-half Paddy Wallace starred in his first Irish start with 26 points in an excellent display.
Tries from Denis Hickie, Wallace, Malcolm O'Kelly, Simon Easterby (2), Shane Horgan, Rory Best and Paul O'Connell secured a convincing win.
Seru Rabeni, Lome Fa'atau and Tusi Pisi touched down for the visitors.
The Irish started and finished the first half in style but in between they displayed all the signs of a team showing nine changes, including three debutants.
A clever reverse pass from Wallace sent Hickie through for the opening try after five minutes.
Wallace added the conversion and a penalty to give the home side early confidence.
But the visitors hit back after 12 minutes with Seru Rabeni going over for a converted try after good work from Ratuvou.
Wallace gave Ireland a nine-point cushion with two more penalties but the new-look side were now making mistakes and the game was lacking rythm.
Justin Va'a was sinbinned after pulling down a maul on 30 minutes but the Pacific Islands claimed their second try four minutes later when Fa'atau touched down after a turnover.
There was a late flourish from the Irish with Wallace cutting inside and darting over before O'Kelly put a further five points on the board after stealing the ball from a line-out.
Wallace's conversion gave the Irish a 30-12 half-time advantage.
Girvan Dempsey, injured in a first-half tackle from Rabeni, was replaced at the interval by Gordon D'Arcy.
Eddie O'Sullivan's side made an excellent start to the second half with tries from Easterby and Horgan.
Brian O'Driscoll's off-load put Easterby through while Horgan bounced off a tackle before racing to the line.
The impressive Wallace converted both tries to take his tally to 24 points.
Ireland skipper O'Driscoll went off injured after 58 minutes with Ulster scrum-half Issac Boss his replacement.
Easterby forced his way over for his second try and another superb kick from Wallace makes it 51-12.
Rory Best added another try courtesy of a Boss lay-off and O'Connell surged over for the final try at the old Dublin stadium.
Sadly for Wallace he spoiled his perfect record by missing his final two conversion attempts.
However, he had already done enough to secure the man-of-the-match award.
Ireland: G Dempsey, L Fitzgerald, B O'Driscoll, S Horgan, D Hickie, P Wallace, P Stringer; B Young, F Sheahan, J Hayes, M O'Kelly, P O'Connell, S Easterby, S Ferris, J Heaslip.
Replacements: R Best, S Best, D O'Callaghan, D Leamy, I Boss, R O'Gara, G D'Arcy.
Pacific Islands: N Ligairi, L Fa'atau, S Rabeni, E Seveali'i, K Ratuvou; T Pisi, M Rauluni; J Va'aHale A Lutui, T Taumoepeau, D Leo, S Raiwalui (capt), N Latu, M Molitika, T-Pole.
Replacements: M Schwalger, T Felise, E Taione, A Ratuva, J Poluleuligaga, S Mapasua, A Tuilagi.
Referee: Christophe Berdos (France)