In Wales David Humphreys kicked four penalties for Ulster who led 12-0 as a dull game drifted to a close before Paddy Wallace scored a late try to give the final scoreline a flattering aspect.
And in Selkirk, an injury time drop goal from Mark McHugh gave Connacht a one point win (28-27) over Scottish newcomers, Borders.
Newport came a cropper at home where they were beaten 13-5 by Bridgend whose Lion Daffyd James scored a try to cap a marvellous personal performance.
Meanwhile there was further bad news for Munster as they prepared for their game with Llanelli, when Frank Shehan cried off the staqrting line up with a shoulder complaint. His place goes to James Blaney with John Fogarty coming onto the bench.