It was a sub-par, topsy-turvy week of football in the Atlantic Coast Conference. Three member teams lost non-conference games, all in different, but equally devastating fashion.

Boston College started the season with a 3-0 record for the first time since Matt Ryan was its signal caller, then went to Purdue and was manhandled in a 30-13 loss. The Virginia Tech Hokies, the No. 2 team in last week's Power Rankings, lost a 49-35 shootout at Old Dominion — a club that entered the contest 0-3 with losses to Florida International, Charlotte and Liberty. Wake Forest was a seven-point underdog to Notre Dame, but they lost in such devastating fashion (56-27) that the Deacs fired their defensive coordinator the very next day. Not a good showing for the ACC.

In conference games, North Carolina got its first win of the season by nipping Pitt 38-35 and Virginia throttled Louisville 27-3. All 14 conference teams are in action this coming week, beginning with North Carolina (1-2) traveling to Miami (3-1) for an 8 p.m. Thursday matchup on ESPN. That's just one of five ACC matchups on the week.

The on-the-field insanity led to a ton of movement in the power rankings, with just four teams retaining the position they held the previous week.

Here's the 247Sports ACC Week 3 Power Rankings: