It's been a while, but I don't recall any problems with my old AM3+ board.
Can you mount a side fan?
ok thank you for your advice ...if possible can you please upload images of your system with am3 + board showing your after market cooler....so i can get idea .....
Edit: i had already mounted a side case fan..which draw outer cooler air inside....but didn't get much improvement....allover i got only 3 to 4 degree improvement against my stock cooler.......what should i do....????