I'm thinking of trying to overclock and buy and new heatsink for the first time. I just want to know foremost if the hyper 212 plus will fit in my case before I buy it. I have an Antec 900 case with an Asus P5N-e Sli Mobo and I also have a side panel fan.
You might have to take off the side fan.
If you do, just move that fan inside and use the optional fan mount.
I have a 902 with a 160mm tall cooler and use that set-up.
I'm thinking the 212+ 158.5mm might fit with the side fan intact though.
Hint you'll get better temps and less dust with the side fan moved inside.