Northamptonshire maintained their excellent Friends Life t20 campaign with a resounding 36-run victory over Durham in Tuesday's second quarter-final at Wantage Road.
The Steelbacks made home advantage count as they racked up 183-4 - their highest home score of the season - before restricting the Dynamos to just 147-6 to seal their place at Finals Day.
New-look opening duo Kyle Coetzer and David Willey laid the perfect platform to the Northants innings after captain Alex Wakely had won the toss and opted to bat first in front of a bumper home crowd.
Scotland international Coetzer struck six boundaries in his classy knock of 44, while pinch-hitter Willey flung the bat with useful effect to post 46 from only 32 balls.
The pair added 89 for the first wicket inside 12 overs with only England hopeful Graham Onions (0-23) asserting any sort of control from the away bowlers.
The wicket of Willey, bowled by Gareth Breese when swinging across the line, saw the introduction of White, who played himself in with just four runs from his first 10 balls faced.
He upped the ante in the 16th over, hitting Breese for three sixes in four balls before taking Scott Borthwick for another maximum as Northants motored up to a daunting total at the halfway stage.
Durham were never in contention thanks to an equally-impressive bowling performance from Northamptsonshire's unheralded seam attack.
Steven Crook (1-27) accounted for Mark Stoneman but it was Lee Daggett's miserly spell of 1-13 which kept Durham well behind the required-rate.
Ben Stokes (51 not out) added some respectability to the run-chase with a 25-ball half-century, however Durham must wait for another year to break their 20-over trophy duck.