The Virginia Cavaliers, who defeated William and Mary, 63-35, Saturday to begin the season 5-0 for the first time since 1949, jumped from No. 7 to No. 4 in this week's Associated Press poll.
Virginia, 10-3 last season, began this season ranked No. 15. The Cavaliers received their first top-10 ranking in 38 years two weeks ago, coming in at No. 9 after a 56-14 victory over Navy.
"This means something, but you have to take it for what it's worth," Virginia nose guard and tri-captain Ron Carey said. "We still have six weeks left to play. To even think anything else right now would be premature."
Virginia allowed more points to William and Mary than to its previous four opponents combined, but scored more than 50 for the fourth time this season, setting a record for an ACC team. Through their first five games, the Cavaliers are averaging 51 points and 563 yards offensively a game.
In other movement, Florida cracked the Top 10, Brigham Young dropped out of the elite group and Georgia Tech gained its first ranking in six years.
Notre Dame and Florida State remained 1-2 and combined to get all but one of the 60 first-place votes -- the other vote went to Virginia.
Florida, which can't go to a bowl game because of NCAA sanctions, rose seven spots to No. 10 after beating Mississippi State, 34-21, and improving to 4-0. It's the first Top 10 appearance for the Gators since 1987.
BYU fell seven places to No. 11 after its first loss this season, 32-16 to Oregon. The victory boosted Oregon into the rankings at No. 22.
Georgia Tech's 27-6 victory over South Carolina moved the undefeated Yellow Jackets to 23rd in the nationwide poll of sports writers and broadcasters. Georgia Tech hadn't been ranked since 1984, when it reached 12th.
The loss dropped South Carolina, 25th last week, out of the rankings. Arizona State, 21st last week, fell out after a 30-9 loss to Missouri.
The Fighting Irish, who beat Purdue, 37-11, received 49 first-place votes and 1,489 points. Florida State got 10 first-place votes and 1,420 points after rallying to beat Virginia Tech, 39-28.
Michigan, which lost its opener to Notre Dame, jumped three spots to No. 3 after downing Maryland, 45-17. Auburn and Tennessee both dropped after a 26-26 tie. Auburn fell two places to No. 5 and Tennessee went down a notch to No. 6.
Oklahoma jumped two spots to seventh after clipping Kansas, 31-17, Nebraska stayed No. 8 after stopping Oregon State, 31-7, and Miami rose one to No. 9 with a 48-21 win over Iowa.
Colorado made the biggest jump, eight to No. 12, after handing Washington its first loss, 20-14. The Huskies fell five to No. 17.
Special correspondent Pete Williams in Charlottesville contributed to this report.