Goal machine Lee Newport grabbed another hat-trick as Harwell International brushed aside AFC Newbury Res 5-1 in the second round.
Midfielder Steve Cuddon weighed in with a brace to complete the rout.
Shrivenham crushed Marcham 6-0. Neil Sutton and substitute Danny Scott notched two apiece and Mark Ayres and an own goal made up their tally.
Saxton Rovers also came through after beating AFC Aldermaston 4-2 with goals from Dave Stanley, Andy Shaw, Paul Hogg and Mark Mulford.
East Hendred put up a brave show before going down 2-1 at home to Reading League side Unity. Barry Fisher grabbed a first-half equaliser for Hendred.
Stanford-in-the-Vale also found it tough going as they went out 4-2 against Maidenhead United Res. Colin Scrivens and Stuart Tofte were the Stanford scorers.
Wantage Res crashed out of the Newbury Graystone Cup with a 10-0 home thrashing by Kintbury Rangers.
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