Motherboard Heatsinks - Zalman ZM-NB32J Northbridge Motherboard Cooler
The Zalman ZM-NB32J is Zalman's older version of their fanless Northbridge cooler. It is slightly lighter and shorter version than the newer version and has some compatibility issues with some of the newer motherboards (see below). As such, it is available you at a lower price than the NB47J.
Since there are no moving parts with this Zalman Northbridge cooler, it does not generate any noise or vibration; perfect for your quiet computer.
Please note: Zalman's ZM-NB32J is compatible with all Northbridge chipsets that do not have a built-in graphics core. However, the Northbridge chipsets with built-in graphics cores are compatible only if the Northbridge chipset is located between the CPU socket and AGP (or PCIe) slot.