Heatsink, MB or PSU power connector

[fftaz336]

I have a Speeze 5T321B1 Heatsink reccomended for up to an Athlon XP 3200+. My specs are below. MY QUESTION IS< should I connect my heatsink to my PSU since it has a connector for it, or should I leave it connected to my MB.
Here are the specs.

http://www.mwave.com/mwave/SpecB/BA19351.html

[Mr N8]

LEave it connected to your motherboard. That way, if it ever stops spinning, your mobo will be able to shut your computer down, without you frying your CPU.

[fftaz336]

Good point. Thanks

[Cricket]

If the 4 pin power connector looks like this (http://2cooltek.safeshopper.com/58/300.htm?824), I would connect the heatsink fan to the power supply and then connect the RPM sensing wire to the motherboard. This way you get the best of both worlds...power directly from the power supply and RPM sensing for the health monitor.

:) Cricket