[/quote]The only reason I know of is to remove old thermal compound. On a new CPU, there is nothing to clean or remove as the stock pad is attached to the cooler, not the CPU sink.[/quote]
thanks for the reply, so when you build using brand new cpu/heatsink you haven't used isopropanol?
I haven't built before and am not going to right this moment but I was ordering some stuff from a place that sells isopropanol so thought get it now (if needed) and save wasting money on postage