General ACCAGained exemptions from university, but its been a while. Need advice

Hi, I did Accounting at University and as a result I have got exemptions to all the F papers. Therefore I only need to sit the P papers. However I graduated a few years ago and therefore I have forgotten most of the things I learnt about. I just want to know: Do I need to revise F1 to F9 before i sit the remaining P Papers? or do you think it is possible to pass certain P Papers without revising the content for F1 to F9? (If yes, please mention which papers). Thanks in advance!