A:Answer The fan used on the cooler is the standard edition Intel approved one. If you want to upgrade it you can, just like any other cooler replacement. You take the old one off, clean the thermal compound off the processor, add new compound per the recommendations that came with it (check Youtube), attach the new cooler with the hardware that it came with.
But the first question is why do you want to do this? The existing cooler is fine. You could add another case fan if you wanted, a lot cheaper and easier.