Performance:
Test system:
Intel QX6700
MSI P35 Motherboard
2x1Gb Patriot DDR2-8500
Gainward 8600GT
Auzentech X-Meridian 7.1
Benq DVD Writer
WD Raptor 134Gb
2x12cm Case fans
Enermax Galaxy 850w

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Obviously a big chunk of metal can cool reasonably well when combined with a few case fans and the temperature above shows the performance of the GeminII when in “fanless” mode. The temperatures are a little high for a Core2 CPU however nothing dangerous to the processor and the lack of noise may be worth it for those with sensitive ears. Comparing to another fanless product, the Thermaltake Sonic Tower Rev.2 we see that the Cooler Master product has a 4c advantage at both load and idle.

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Moving to fan mode we have set the GeminII in two configurations. The first is a one fan install with a single 12cm 1400rpm, 45CFM, 18dBa model attached. The second is a 2 fan arrangement as we add a 2nd fan of identical specification to the cooler. Noise levels when using fans will vary greatly depending on the model and so we shall not be forming an opinion on this aspect of the product as it is entirely down to the specific user. What we can comment on is the performance of the GeminII compared to the Sonic Tower which is only able to use a single 12cm fan.

In single mode the performance of both coolers is quite similar, in-fact the idle temps are identical. If this was the only configuration available then we would lean towards the Thermaltake cooler being the preferred product due to its slightly easier install however the 2 fan mode of the Cooler Master adds an extra level of performance which is unmatched by the Sonic Tower.