The Zalman FX100 is a fanless CPU cooler with a huge cube heatsink and 10 heatpipes. Let’s test it with no fan, and also with one optional 92 mm fan, and see if it can cool our CPU. Check it out!

Although being advertised as a truly fanless CPU cooler, Zalman says that the use of an optional 92 mm fan is required when used with a socket LGA1366 or socket LGA2011 CPU. Actually, the product documentation says that it supports CPUs with a TDP up to 130 W when a fan is used, but there is no information about how many watts the FX100 supports in fanless operation.

Figure 1 shows the huge box of the FX100.

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Figure 1: Package

Figure 2 shows the contents of the box: the cooler, a small bag of thermal compound, a manual, and installation hardware. This cooler does not come with any fan.

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Figure 2: Accessories

Figure 3 displays the front of the cooler.

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Figure 3: Front view

This cooler is discussed in detail in the following pages.