Finally got around to getting my NB EK NB/SB ASUS 4 - Acetal unit.

My question is when I remove the stock NB/SB/Mosfet unit from my Asus board, the NB chip is just a tiny chip and then there are a whole bunch of smaller little connections. On the stock cooler it had a square pad around the edge that would not come off, so I left it.

Do I need to work about those little units, or just the chip itself?