<< Why replace the HS that is already on the NB? Waste of time and money. Unless you are overclocking the fsb. >>
Like I said before, if u r O/Cing the FSB...active cooling is necessary as the NB tends to get quite hot in those setup. If u r runing at stock speed, some from of cooling is recommended (like at least a HS...no fan).
In the country tht I'm in the ambient temp could get as high as 30C, case temp at 40C....so some cooling is needed for added stability.
No money wasted if u just unplug the current fan & leave it. Wasting time...unplug take less than 5 sec...but if u r not into wasting tht 5 sec...I suggest u just leave it....a bit noisy thou.
Hoep tht clear ur doubt.