I just received my IC7-G MOBO while replacing the stock cooling fan, I removed the northbrigde fan to see what was under it. Their is a white thin tape w/ a square cut out from it . My question is, is this tape necessary? because I removed it and cleaned it up. I'm just worried that it might be to keep the metal base off the little electrical contacts on the Northbrigde chip. If anybody can shed some light on this, please do, I'm in a holding pattern now until I find out if it's ok.