Quick question here, I have an Asus a8n-e motherboard that had the chipset fan go out on it, I removed the heatsink/fan to replace it with an oem fan sent from Asus, my question is, how important is the little plastic sticker that sits between the chipset and the heatsink? I'm not that good at descriptions, but its black and surrounds the core of the chipset leaving the core bare to the bottom of the heatsink. Is this something that's necessary?